# 2015 in paleomalacology

This list, 2015 in molluscan paleontology, is a list of new taxa of ammonites and other fossil cephalopods, as well as fossil gastropods, bivalves and other molluscs that have been described during the year 2015.

## Ammonites

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes |
| Abichites alibashiensis | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Abichites ariaeii | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Abichites paucinodus | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Abichites shahriari | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Abichites subtrapezoidalis | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Abichites terminalis | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Alibashites | Gen. et comb. et 3 sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Azerbaijan  Iran | A new genus for "Xenodiscus (Paratirolites)" mojsisovicsi Stoyanow (1910); genus also includes new species Alibashites ferdowsii and Alibashites uncinatus. New species A. stepanovi was also originally assigned to this genus, but subsequently it was transferred to the genus Lutites. |
| Aspenites radiatus | Sp. nov | Valid | Smyshlyaeva & Zakharov | Early Triassic | | Russia | A member of Aspenitidae, a species of Aspenites. |
| Barremites macroumbilicus | Sp. nov | Valid | Matsukawa & Obata | Early Cretaceous | | Japan | A species of Barremites. |
| Boughdiriella | Gen. et sp. nov | Valid | Frau, Bulot & Wimbledon | Late Jurassic (late Tithonian) | | Bulgaria  France  Spain | A himalayitid perisphinctoid. The type species is Boughdiriella chouetensis. |
| Breskovskiceras bangilae | Sp. nov | Valid | Vermeulen, Damais & Lépinay | Early Cretaceous | | France | |
| Breskovskiceras delavitae | Sp. nov | Valid | Vermeulen, Damais & Lépinay | Early Cretaceous | | France | |
| Bullatimorphites frederiquei | Sp. nov | Valid | Martin & Mangold | Middle Jurassic (Bathonian) | | France | |
| Bullatimorphites globulicostatus | Sp. nov | Valid | Martin & Mangold | Middle Jurassic (Bathonian) | | France | |
| Cadoceras quenstedtiforme | Sp. nov | Valid | Mitta et al. | Middle Jurassic (Callovian) | | Germany | A member of Cardioceratidae, a species of Cadoceras. |
| Cadoceras wutachense | Sp. nov | Valid | Mitta et al. | Middle Jurassic (Callovian) | | Germany | A member of Cardioceratidae, a species of Cadoceras. |
| Calycoceras (Newboldiceras) tunisiense | Nom. nov | Valid | Kennedy & Gale | Late Cretaceous | | Algeria  Tunisia | A replacement name for Acanthoceras jimboi var. tunetana Pervinquière (1907). |
| Choctawites | Gen. et comb. nov | Valid | Korn & Titus in Titus et al. | Carboniferous (Mississippian) | | United States | A member of Delepinoceratidae. A new genus for "Goniatites" choctawensis Shumard (1863); genus also contains "Glyphioceras" cumminsi Hyatt (1893) and "Goniatites" kentuckiensis Miller (1889). |
| Choffatia schilleri | Sp. nov | Valid | Parent & Garrido | Middle Jurassic (late Callovian) | La Manga Formation | Argentina | A species of Choffatia. |
| Cyrtoclymenia? magna | Sp. nov | Valid | Zong, Becker & Ma | Late Devonian (Famennian) | Hongguleleng Formation | China | A member of Cyrtoclymeniidae, possibly a species of Cyrtoclymenia. |
| Deweveria kovalenkoi | Sp. nov | Valid | Smyshlyaeva & Zakharov | Early Triassic | | Russia | A member of Hemilecanitidae, a species of Deweveria. |
| Docidoceras tolleyi | Sp. nov | Valid | Sandoval & Chandler | Middle Jurassic | | United Kingdom | A species of Docidoceras. |
| Dzhulfites hebes | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Dzhulfites zalensis | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Eurites kuilukensis | Sp. nov | Valid | Konovalova | Carboniferous (late Tournaisian) | | Uzbekistan | A species of Eurites. |
| Extropharciceras gentile | Sp. nov | Valid | Bockwinkel, Becker & Ebbighausen | Devonian (late Givetian) | | Morocco | |
| Extropharciceras serum | Sp. nov | Valid | Bockwinkel, Becker & Ebbighausen | Devonian (late Givetian) | | Morocco | |
| Felisporadoceras nautilus | Sp. nov | Valid | Korn, Bockwinkel & Ebbighausen | Devonian (Famennian) | | Morocco | A member of Sporadoceratidae, a species of Felisporadoceras. |
| Foellmiceras | Gen. et comb. nov | Valid | Vermeulen et al. | Early Cretaceous (Barremian) | | France | A member of the family Silesitidae. Genus includes "Ammonites" vulpes Coquand, in collect. Ph. Matheron, 1878 in Matheron (1880), as well as Foellmiceras typus (Milaschewitch, 1877) and Foellmiceras quinquesulcatus (Trautschold, 1886). |
| Frogdenites fernandezlopezi | Sp. nov | Valid | Sandoval & Chandler | Middle Jurassic (early Bajocian) | | Spain | A species of Frogdenites. |
| Habadraites kulosiensis | Sp. nov | Valid | Konovalova | Carboniferous (late Tournaisian) | | Uzbekistan | A species of Habadraites. |
| Haoceras | Gen. et sp. nov | Valid | Balini & Zou in Zou et al. | Middle Triassic (late Ladinian) | Falang Formation | China | A member of Trachyceratidae. The type species is Haoceras xingyiense. |
| Hemicymbites | Gen. et sp. et comb. nov | Valid | Dommergues | Early Jurassic (Sinemurian) | | France | A member of Arietitidae. The type species is Hemicymbites tardiornatum; genus also contains "Ammonites" semicostulatus Reynès (1879). |
| Hoploscaphites sargklofak | Sp. nov | Valid | Landman, Kennedy & Larson | Late Cretaceous (early Maastrichtian) | Bearpaw Shale Lewis Shale Pierre Shale | United States | A member of Scaphitidae, a species of Hoploscaphites. |
| Idoceras pinonense | Sp. nov | Valid | Zell & Stinnesbeck | Late Jurassic (Kimmeridgian) | La Casita Formation | Mexico | A member of Perisphinctidae, a species of Idoceras. |
| Julfotirolites | Gen. et sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | The type species is Julfotirolites kozuri. |
| Klugites | Gen. et comb. nov | Valid | Becker in Aboussalam, Becker & Bultynck | Devonian (Emsian) | | Morocco | A member of Agoniatitida belonging to the family Mimoceratidae; a new genus for "Lenzites" gesinae Klug (2001). |
| Labyrinthoceras dietzei | Sp. nov | Valid | Sandoval & Chandler | Middle Jurassic | | Spain  United Kingdom | A species of Labyrinthoceras. |
| Lotzeites elegans | Sp. nov | Valid | Kennedy & Gale | Late Cretaceous (Cenomanian) | | Tunisia | A member of Euomphaloceratinae, a species of Lotzeites. |
| Mimimitoceras alidrisii | Sp. nov | Valid | Korn, Bockwinkel & Ebbighausen | Late Devonian | | Morocco | A member of Prionoceratidae, a species of Mimimitoceras. |
| Mimimitoceras carnatum | Sp. nov | Valid | Korn, Bockwinkel & Ebbighausen | Late Devonian | | Morocco | A member of Prionoceratidae, a species of Mimimitoceras. |
| Mimimitoceras comtum | Sp. nov | Valid | Korn, Bockwinkel & Ebbighausen | Late Devonian | | Morocco | A member of Prionoceratidae, a species of Mimimitoceras. |
| Mimimitoceras endocuboide | Sp. nov | Valid | Korn, Bockwinkel & Ebbighausen | Late Devonian | | Morocco | A member of Prionoceratidae, a species of Mimimitoceras. |
| Mimimitoceras ibnishaqi | Sp. nov | Valid | Korn, Bockwinkel & Ebbighausen | Late Devonian | | Morocco | A member of Prionoceratidae, a species of Mimimitoceras. |
| Mimimitoceras taourirtense | Sp. nov | Valid | Korn, Bockwinkel & Ebbighausen | Late Devonian | | Morocco | A member of Prionoceratidae, a species of Mimimitoceras. |
| “Mimimitoceras” transiens | Sp. nov | Valid | Becker & Zong in Zong, Becker & Ma | Late Devonian (Famennian) | Heishantou Formation | China | A member of Prionoceratidae of uncertain phylogenetic placement. |
| Mollistephanus ottiliae | Sp. nov | Valid | Galácz in Galácz, Dunai & Evanics | Middle Jurassic (early Bajocian) | | Hungary | A member of Stephanoceratidae, a species of Mollistephanus. |
| Mzerrebites amarensis | Sp. nov | Valid | Bockwinkel, Becker & Ebbighausen | Devonian (late Givetian) | | Morocco | |
| Neoaganides ultimus | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Neoastieria houilloni | Sp. nov | Valid | Vermeulen et al. | Early Cretaceous (Barremian) | | France | A member of the family Silesitidae. Originally described as a species of Neoastieria, but subsequently transferred to the genus Nodososilesites. |
| Neopronorites tenkensis | Sp. nov | Valid | Kutygin in Kutygin & Biakov | Permian (probably Artinskian) | Rodionovsky Formation | Russia | A member of Prolecanitida belonging to the family Pronoritidae, a species of Neopronorites. |
| Nodopericyclus asiaticus | Sp. nov | Valid | Konovalova | Carboniferous (late Tournaisian) | | Uzbekistan | A species of Nodopericyclus. |
| Oraniceras scythicum | Sp. nov | Valid | Mitta | Middle Jurassic (Bathonian) | Djangura Formation | Russia | A member of Parkinsoniidae, a species of Oraniceras. |
| Paramollistephanus | Gen. et comb. nov | Valid | Fernandez-Lopez & Pavia | Middle Jurassic | El Pedregal Formation Snowshoe Formation | Spain  United States | A member of the family Stephanoceratidae. A new genus for "Mollistephanus" hispaniensis Fernandez-Lopez (1985); genus also includes "Stephanoceras" mowichense Imlay (1973) and "Stephanoceras (Phaulostephanus?)" oregonense Imlay (1973). |
| Parasiacyclus | Gen. et sp. nov | Valid | Konovalova | Carboniferous (late Tournaisian) | | Uzbekistan | A member of Pericyclidae. The type species is Parasiacyclus chatkalicus. |
| Paratirolites birunii | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Paratirolites coronatus | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Paratirolites multiconus | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Paratirolites quadratus | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Paratirolites serus | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Parrasiella | Gen. et comb. nov | Valid | Frau, Bulot & Wimbledon | Late Jurassic or Early Cretaceous | | Cuba  Mexico | A himalayitid perisphinctoid. A new genus for "Durangites" astillerensis Imlay (1939); genus also contains "Durangites" rarifurcatus Imlay (1939), "Durangites" galeanense Cantú-Chapa (1968), "Durangites" latiumbilicatum Cantú-Chapa (1968) and "Durangites" juanensis Cantú-Chapa (1968). |
| Petteroceras angustum | Sp. nov | Valid | Bockwinkel, Becker & Ebbighausen | Devonian (late Givetian) | | Morocco | |
| Pharciceras oberbergense | Sp. nov | Valid | Bockwinkel & Korn | Devonian (late Givetian) | | Germany | |
| Progeronia bruntrutense | Sp. nov | Valid | Comment et al. | Late Jurassic (Kimmeridgian) | Reuchenette Formation | Switzerland | |
| Protactoclymenia junggarensis | Sp. nov | Valid | Zong, Becker & Ma | Late Devonian (Famennian) | Hongguleleng Formation | China | A member of Cyrtoclymeniidae, a species of Protactoclymenia. |
| Protactoclymenia parallela | Sp. nov | Valid | Zong, Becker & Ma | Late Devonian (Famennian) | Hongguleleng Formation | China | A member of Cyrtoclymeniidae, a species of Protactoclymenia. |
| Pseudoflemingites evolutus | Sp. nov | Valid | Smyshlyaeva & Zakharov | Early Triassic | | Russia | A member of Flemingitidae, a species of Pseudoflemingites. |
| Pseudogastrioceras relicuum | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Pseudoparodontoceras | Gen. et sp. nov | Valid | Parent et al. | Late Jurassic (Tithonian) | Vaca Muerta Formation | Argentina | A member of the family Neocomitidae. The type species is P. dezai. |
| Psiloceras angulocostatum | Sp. nov | Valid | Von Hillebrandt & Kment | Early Jurassic (early Hettangian) | | Austria | A species of Psiloceras. |
| Rohillites orientalis | Sp. nov | Valid | Smyshlyaeva & Zakharov | Early Triassic | | Russia | A member of Flemingitidae, a species of Rohillites. |
| Schneidia zacatense | Sp. nov | Valid | Villaseñor, Moliner & Olóriz | Late Jurassic (early Kimmeridgian) | | Mexico | A member of Ataxioceratinae, a species of Schneidia. |
| Schrambachoceras | Gen. et comb. et sp. nov | Valid | Boorová et al. | Early Cretaceous (late Berriasian-early Valanginian,) | | Austria  Spain | A member of Ancyloceratina related to Protancyloceras. A new genus for "Protancyloceras" obscurocostatum Vašíček & Hoedemaeker (2003); genus also contains a new species Schrambachoceras weidichi. |
| Sharpeiceras minor | Sp. nov | Valid | Kennedy, Klinger & Lehmann | Late Cretaceous (early Cenomanian) | Mzinene Formation | South Africa | A relative of Mantelliceras, a species of Sharpeiceras. |
| Sinomeginoceras | Gen. et 2 sp. nov | Valid | Balini & Zou in Zou et al. | Middle Triassic (late Ladinian) | Falang Formation | China | A member of Trachyceratidae. The type species is Sinomeginoceras wangi; genus also contains Sinomeginoceras xingyiense. |
| Sporadoceras conforme | Sp. nov | Valid | Korn, Bockwinkel & Ebbighausen | Devonian (Famennian) | | Morocco | A member of Sporadoceratidae, a species of Sporadoceras. |
| Sporadoceras impressum | Sp. nov | Valid | Becker & Zong in Zong, Becker & Ma | Late Devonian (Famennian) | Hongguleleng Formation | China | A member of Sporadoceratidae, a species of Sporadoceras. |
| Stolleyites terminalis | Sp. nov | Valid | Konstantinov | Middle Triassic (Ladinian) | Zhakan Formation | Russia | A member of Ceratitida belonging to the family Nathorstitidae. |
| Stoyanowites aspinosus | Sp. nov | Valid | Korn & Ghaderi in Korn et al. | Late Permian (Changhsingian) | | Iran | |
| Subradioceras | Gen. et sp. nov | Valid | Smyshlyaeva & Zakharov | Early Triassic | | Russia | A member of Meekoceratidae. The type species is Subradioceras mikhailovichi. |
| Takahashiceras | Nom. nov | Valid | Hoffmann & Howarth | Cretaceous | | Japan | A member of Lytoceratidae; a replacement name for Takahashia Matsumoto (1984) and Takahashiella Cooper (2012) (both preoccupied). |
| Tornoceras wunderlichi | Sp. nov | Valid | Bockwinkel & Korn | Devonian (late Givetian) | | Germany | |
| Trilobiticeras (Emileites) kecskemetii | Sp. nov | Valid | Galácz in Galácz, Dunai & Evanics | Middle Jurassic (early Bajocian) | | Hungary | A member of Otoitidae, a species of Trilobiticeras. |
| Ungusporadoceras | Gen. et sp. nov | Valid | Korn, Bockwinkel & Ebbighausen | Devonian (Famennian) | | Morocco | A member of Sporadoceratidae. The type species is Ungusporadoceras unguiforme. |
| Uralyroceras | Gen. et comb. et. sp. nov | Valid | Korn & Titus in Titus et al. | Carboniferous (Mississippian) | | Russia  Tajikistan  United States? | A member of Neoglyphioceratidae. A new genus for "Pachylyroceras" constrictum Ruzhencev & Bogoslovskaya (1971); genus also contains "Pachylyroceras" angustum Ruzhencev & Bogoslovskaya (1971), "Pachylyroceras" consequens Ruzhencev & Bogoslovskaya (1971), "Pachylyroceras" esini Nikolaeva (1994), new species Uralyroceras arquatum and possibly "Neoglyphioceras" hyatti Gordon (1965). |
| Veranadaites | Gen. et sp. nov | Valid | Parent & Garrido | Late Jurassic (early Oxfordian) | La Manga Formation | Argentina | A sphaeroceratid ammonite related to the genus Araucanites. The type species is Veranadaites palmicostatus. |
| Womalongiceras | Gen. et sp. nov | Valid | Morton et al. | Jurassic (probably Sinemurian or of slightly younger age) | Wulong Formation | China | Possibly a member of Schlotheimiidae. The type species is Womalongiceras inflatum. |
| Yangites | Gen. et sp. et comb. nov | Valid | Balini & Zou in Zou et al. | Middle Triassic (late Ladinian) | Falang Formation | China | A member of Ceratitidae. The type species is Yangites densicostatus; genus also contains "Bulogites" langdaiensis Wang (1983). |

## Other cephalopods

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes |
| Amphispirula | Gen. et sp. nov | Valid | Fuchs & Košťák | Eocene | | Czech Republic | A relative of the ram's horn squid. The type species is Amphispirula herspica. |
| Bactroceras boliviensis | Sp. nov | Valid | Aubrechtová | Ordovician (late Floian) | Pircancha Formation | Bolivia | A baltoceratid orthocerid, a species of Bactroceras. |
| Bathmoceras holmi | Sp. nov | Valid | Mutvei | Ordovician | | Estonia | A species of Bathmoceras. |
| Cymatoceras nichollsi | Sp. nov | Valid | Grant-Mackie | Late Cretaceous (Haumurian) | Whangai Formation | New Zealand | A cymatoceratid nautiloid, a species of Cymatoceras. |
| Euloxoceras buffalowallowense | Sp. nov | Valid | Niko & Mapes | Carboniferous (Chesterian) | Moorefield Formation | United States | An orthocerid, a species of Euloxoceras. |
| Geisonocerina dargazense | Sp. nov | Valid | Ghavidel-Syooki et al. | Ordovician (Katian) | | Iran | A species of Geisonocerina. |
| Haboroteuthis | Gen. et sp. nov | Valid | Tanabe, Misaki & Ubukata | Late Cretaceous (probably late Santonian) | Haborogawa Formation | Japan | A squid of uncertain phylogenetic placement. The type species is Haboroteuthis poseidon. |
| Lissajousibelus | Gen. et comb. nov | Valid | Weis et al. | Early Jurassic (Toarcian) | | France | A belemnite; a new genus for "Belemnites" harleyi Mayer (1866). |
| Michelinoceras hasei | Sp. nov | Valid | Niko et al. | Permian (Asselian) | Uyamano Formation | Japan | |
| Moorefieldoceras | Gen. et sp. nov | Valid | Niko & Mapes | Carboniferous (Chesterian) | Moorefield Formation | United States | An orthocerid. The type species is Moorefieldoceras yochelsoni. |
| Mutveiceras | Gen. et sp. nov | Valid | Cichowolski et al. | Ordovician (Floian) | Acoite Formation | Argentina | An eothinoceratid nautiloid. The type species is Mutveiceras cienagaensis. |
| Nanaimoteuthis hikidai | Sp. nov | Valid | Tanabe, Misaki & Ubukata | Late Cretaceous (early Campanian) | Haborogawa Formation | Japan | A relative of the vampire squid, a species of Nanaimoteuthis. |
| Peripetoceras milleri | Sp. nov | Valid | Niko & Mapes | Carboniferous (Chesterian) | Moorefield Formation | United States | A nautilid, a species of Peripetoceras. |
| Pumiliobelus | Gen. et 2 sp. nov | Valid | Williamson & Henderson | Late Cretaceous (Cenomanian) | Gearle Siltstone of the Carnarvon Basin | Australia | A dimitobelid belemnite. Genus contains two species: P. haigi and P. tumidus. |
| Rachiteuthis acutali | Sp. nov | Valid | Jattiot et al. | Late Cretaceous (Cenomanian) | | Lebanon | A coleoid cephalopod, a species of Rachiteuthis. |
| Rarobelus | Nom. nov | Valid | Nalnjaeva in Dzyuba et al. | Jurassic (early Toarcian-early Aalenian) | | Greenland  Russia  United Kingdom? | A megateuthidid belemnite; a replacement name for Orthobelus Nalnjaeva in Sachs & Nalnjaeva (1970) (preoccupied). |
| Saloceras quena | Sp. nov | Valid | Cichowolski et al. | Ordovician (Floian) | Acoite Formation | Argentina | An eothinoceratid nautiloid, a species of Saloceras. |
| Saloceras sikus | Sp. nov | Valid | Cichowolski et al. | Ordovician (Floian) | Acoite Formation | Argentina | An eothinoceratid nautiloid, a species of Saloceras. |
| Sibumasuoceras | Gen. et comb. nov | Valid | Niko & Sone | Ordovician | | Malaysia  Myanmar | A member of Pseudorthoceratidae; a new genus for "Ormoceras" langkawiense Kobayashi (1959). |

## Gastropods

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes |
| Acicula giuntellii | Sp. nov | Valid | Harzhauser, Neubauer & Esu in Harzhauser et al. | Miocene (late Messinian) | | Italy | A member of Aciculidae, a species of Acicula. |
| Aclis insolita | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Aclis. |
| Agathotoma pseudolabratula | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Agathotoma. |
| Agatrix petiti | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Agatrix. |
| Alvania doliolum | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Alvania. |
| Alvania falsivenus | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Alvania. |
| Alvania subgaleodinopsis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Alvania. |
| Anematina rugoza | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Elasmonematidae, a species of Anematina. |
| Anodomaria kosmajae | Sp. nov | Valid | Ayoub-Hannaa et al. | Late Cretaceous (early Cenomanian) | | Serbia | A sea snail, a species of Anodomaria. |
| Anodomaria staufensis | Sp. nov | Valid | Gründel & Nützel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | A sea snail, a species of Anodomaria. |
| Anomphalus barskovi | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Anomphalidae, a species of Anomphalus. |
| Anulifera sigmoidea | Sp. nov | Valid | Ferrari & Damborenea | Middle Jurassic (early Bajocian) | Neuquén Basin | Argentina | A member of Protorculidae, a species of Anulifera. |
| Arribazona burovi | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Orthonematidae, a species of Arribazona. |
| Arribazona longispira | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Orthonematidae, a species of Arribazona. |
| Asthenotoma juvenilis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Asthenotoma. |
| Atopippeutis | Gen. et sp. nov | Valid | Kadolsky | Oligocene | | Germany | A segmentinine planorbid. The type species is Atopippeutis muelleri. |
| Barleeia gursi | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Barleeia. |
| Bathrotomaria kronzwilmesorum | Sp. nov | Valid | Gatto et al. | Early Jurassic | | France | A species of Bathrotomaria. |
| Baylea chimbulatiensis | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae, a species of Baylea. |
| Baylea foraminata | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae, a species of Baylea. |
| Baylea nemdaensis | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae, a species of Baylea. |
| Baylea rigida | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae, a species of Baylea. |
| Baylea vjatkensis | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae, a species of Baylea. |
| Bela annemariae | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Bela. |
| Bela fiorentina | Sp. nov | Valid | Della Bella, Naldi & Scarponi | Plio-Pleistocene | | Italy | A species of Bela. |
| Bela plagisculpta | Sp. nov | Valid | Della Bella, Naldi & Scarponi | Plio-Pleistocene | | Italy | A species of Bela. |
| Bela pseudoexilis | Sp. nov | Valid | Della Bella, Naldi & Scarponi | Plio-Pleistocene | | Italy | A species of Bela. |
| Belgrandia velonae | Sp. nov | Valid | Esu & Girotti | Miocene (early Messinian) | Velona Basin | Italy | A species of Belgrandia. |
| Belidaphne brunettii | Sp. nov | Valid | Della Bella, Naldi & Scarponi | Pliocene | | Italy | A member of Mangeliidae. |
| Benoistia chavani | Sp. nov | Valid | Pacaud | Paleocene (Danian) | | France | A member of Brachytrematidae, a species of Benoistia. |
| Berthella arctata | Sp. nov | Valid | Pacaud | Paleocene (Danian) | | France | A member of Pleurobranchidae, a species of Berthella. |
| Berthella jodiae | Sp. nov | Valid | Pacaud | Eocene (Bartonian) | | France | A member of Pleurobranchidae, a species of Berthella. |
| Berthella pristina | Sp. nov | Valid | Pacaud | Paleocene (Danian) | | France | A member of Pleurobranchidae, a species of Berthella. |
| Biarmeaspira jusupovi | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae, a species of Biarmeaspira. |
| Biarmeaspira striata | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae, a species of Biarmeaspira. |
| Bipartopsis | Gen. et sp. nov | Valid | Gründel, Keupp & Lang | Late Jurassic (Kimmeridgian) | | Germany | A sea snail belonging to the family Neritopsidae. The type species is Bipartopsis robustus. |
| Boreioconus | Gen. et sp. nov | Valid | Guzhov & Zakharov | Mesozoic | | Russia | A member of Pectinibranchia. The type species is Boreioconus bojarkensis. |
| Brachystomia cantaurana | Sp. nov | Valid | Landau & LaFollette | Miocene | Cantaure Formation | Venezuela | A member of Pyramidellidae, a species of Brachystomia. |
| Brasovia | Nom. nov | Valid | Neubauer et al. | Miocene to Pliocene | | Romania  Ukraine | A member of Hydrobiidae; a replacement name for Aluta Jekelius (1932) (preoccupied). |
| Bulimorpha lavrskyi | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Soleniscidae, a species of Bulimorpha. |
| Buttenheimia | Gen. et sp. nov | Valid | Nützel & Gründel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | Genus includes new species Buttenheimia dietzi. |
| Caecum nemoralis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Caecum. |
| Campeloma acroterion | Sp. nov | Valid | Hartman | Latest Cretaceous and early Paleocene | Fort Union Formation Hell Creek Formation | United States | A species of Campeloma. |
| Camponaxis? jaegeri | Sp. nov | Valid | Gründel & Nützel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | A sea snail belonging to the family Tofanellidae, possibly a species of Camponaxis. |
| Camponaxis jurassica | Sp. nov | Valid | Nützel & Gründel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | |
| Carychium galli | Sp. nov | Valid | Salvador | Miocene | | Germany | A species of Carychium. |
| Cassianopsis eversi | Sp. nov | Valid | Gründel, Keupp & Lang | Late Jurassic (Kimmeridgian) | | Germany | A sea snail belonging to the family Neritopsidae; a species of Cassianopsis. |
| Cassianopsis ratua | Sp. nov | Valid | Gründel, Keupp & Lang | Late Jurassic (Kimmeridgian) | | Germany | A sea snail belonging to the family Neritopsidae; a species of Cassianopsis. |
| Cataldia | Gen. et comb. nov | Valid | Calzada & Corbacho | Cretaceous | | Spain  Argentina?  Japan? | A member of Batillariidae. A new genus for "Confusiscala" caneroti Calzada (1973); genus also includes "Cerithium" mirambelensis Vilanova and possibly also Pyrazus? scalariformis Nagao (1934). |
| Ceratia meridionalis | Sp. nov | Valid | Lozouet | Oligocene | | France | A member of Iravadiidae, a species of Ceratia. |
| Chauvetia inopinata | Sp. nov | Valid | Landau, da Silva & Vermeij | Miocene (late Burdigalian-early Langhian boundary) | Cantaure Formation | Venezuela | A member of Buccinidae, a species of Chauvetia. |
| Chemnitzia macsotayi | Sp. nov | Valid | Landau & LaFollette | Miocene | Cantaure Formation | Venezuela | A member of Pyramidellidae, a species of Chemnitzia. |
| Chevallieria stampinensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A member of Iravadiidae, a species of Chevallieria. |
| Chrysallida cantaurana | Sp. nov | Valid | Landau & LaFollette | Miocene | Cantaure Formation | Venezuela | A member of Pyramidellidae, a species of Chrysallida. |
| Cima oligocaenica | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Cima. |
| Cima planorbiformis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Cima. |
| Cima tenuispina | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Cima. |
| Cima virodunensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Cima. |
| Cittarium praepica | Sp. nov | Valid | Landau, Kronenberg & da Silva | Late Miocene | Cercado Formation | Dominican Republic | A species of Cittarium. |
| Clithon (Pictoneritina) hillae | Sp. nov | Valid | Symonds | Eocene (Priabonian) | Bouldnor Formation | United Kingdom | A species of Clithon. |
| Clithon (Pictoneritina) mortoni | Sp. nov | Valid | Symonds | Eocene (Priabonian) | Bouldnor Formation | United Kingdom | A species of Clithon. |
| Clithon (Pictoneritina) pococki | Sp. nov | Valid | Symonds | Eocene (Priabonian) | Headon Hill Formation | United Kingdom | A species of Clithon. |
| Cochlicopa fassabortoloi | Sp. nov | Valid | Harzhauser, Neubauer & Esu in Harzhauser et al. | Miocene (late Messinian) | | Italy | A member of Cochlicopidae, a species of Cochlicopa. |
| Colubratriton | Gen. et comb. et 2 sp. nov | Valid | Pacaud, Ledon & Loubry | Eocene (Ypresian to Lutetian) | Paris Basin | France | A member of Cancellariidae belonging to the subfamily Plesiotritoninae. Genus includes "Plesiotriton" deshayesianus Beu & Maxwell (1987), as well as new species Colubratriton garini and Colubratriton merlei. |
| Columbarium antecedens | Nom. nov | Valid | Pacaud | Paleocene (Danian) | | Belgium Crimean Peninsula  France  Poland  Ukraine | A member of Turbinellidae, a species of Columbarium. A replacement name for Fusus heberti Briart & Cornet (1877) (preoccupied). |
| Conasprella (Ximeniconus) ageri | Sp. nov | Valid | Hendricks | Early Pliocene | Gurabo Formation | Dominican Republic | A member of Conidae, a species of Conasprella. |
| Confusiscala nackiji | Sp. nov | Valid | Blagovetshenskiy | Early Cretaceous | | Russia | A wentletrap, a species of Confusiscala. |
| Conus anningae | Sp. nov | Valid | Hendricks | Early Pliocene | Gurabo Formation | Dominican Republic | A member of Conidae, a species of Conus. |
| Conus (Stephanoconus) bellacoensis | Sp. nov | Valid | Hendricks | Late Miocene to early Pliocene | Cercado Formation Gurabo Formation | Dominican Republic | A member of Conidae, a species of Conus. |
| Conus (Lautoconus?) carlottae | Sp. nov | Valid | Hendricks | Late Miocene to early Pliocene | Cercado Formation Gurabo Formation | Dominican Republic | A member of Conidae, a species of Conus. |
| Conus (Ductoconus) cashi | Sp. nov | Valid | Hendricks | Late Miocene to early Pliocene | Cercado Formation Gurabo Formation | Dominican Republic | A member of Conidae, a species of Conus. |
| Conus (Atlanticonus?) franklinae | Sp. nov | Valid | Hendricks | Late Miocene to early Pliocene | Cercado Formation Gurabo Formation | Dominican Republic | A member of Conidae, a species of Conus. |
| Conus (Dauciconus) garrisoni | Sp. nov | Valid | Hendricks | Late Miocene | Cercado Formation | Dominican Republic | A member of Conidae, a species of Conus. |
| Conus (Stephanoconus) gouldi | Sp. nov | Valid | Hendricks | Late Miocene | Cercado Formation | Dominican Republic | A member of Conidae, a species of Conus. |
| Conus (Spuriconus?) kaesleri | Sp. nov | Valid | Hendricks | Early Pliocene | Gurabo Formation | Dominican Republic | A member of Conidae, a species of Conus. |
| Conus (Spuriconus?) lombardii | Sp. nov | Valid | Hendricks | Late Miocene | Cercado Formation | Dominican Republic | A member of Conidae, a species of Conus. |
| Conus lyelli | Sp. nov | Valid | Hendricks | Late Miocene to early Pliocene | Cercado Formation Gurabo Formation | Dominican Republic | A member of Conidae, a species of Conus. |
| Conus (Dauciconus?) zambaensis | Sp. nov | Valid | Hendricks | Early Pliocene | Gurabo Formation | Dominican Republic | A member of Conidae, a species of Conus. |
| Coptostoma marcominii | Sp. nov | Valid | Lozouet | Oligocene | | France | A member of Cancellariidae, a species of Coptostoma. |
| Costasphaera | Gen. et sp. nov | Valid | Nützel & Gründel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | Genus includes new species Costasphaera franconica. |
| Costataphrus weissmuelleri | Sp. nov | Valid | Gründel & Nützel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | A sea snail belonging to the family Ataphridae, a species of Costataphrus. |
| Costoanachis peyrehoradensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Costoanachis. |
| Costoanachis praeterebralis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Costoanachis. |
| Crassispira aster | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Crassispira. |
| Crassispira lagouardensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Crassispira. |
| Crassispira lesbarritzensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Crassispira. |
| Crossostoma spiralocosta | Sp. nov | Valid | Gründel & Nützel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | A sea snail belonging to the family Ataphridae, a species of Crossostoma. |
| Cryptaulax johanni | Sp. nov | Valid | Nützel & Gründel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | |
| Cryptaulax weaveri | Sp. nov | Valid | Ferrari & Damborenea | Middle Jurassic (early Bajocian) | Neuquén Basin | Argentina | A member of Procerithiidae, a species of Cryptaulax. |
| Dauterria | Gen. et 2 sp. nov | Valid | Gründel, Keupp & Lang | Late Jurassic (Kimmeridgian) | | Germany | A sea snail belonging to the family Pileolidae. The type species is Dauterria variocostata; genus also contains Dauterria rotundata. |
| Delminiella norica | Sp. nov | Valid | Harzhauser, Mandic & Neubauer in Harzhauser et al. | Late Early Miocene | | Austria | A member of the superfamily Lymnaeoidea, possibly a member of the family Lymnaeidae; a species of Delminiella. |
| Dentimargo elusiva | Sp. nov | Valid | Sosso, Brunetti & Dell'Angelo | Miocene (Tortonian) | | Italy | A member of Marginellidae, a species of Dentimargo. |
| Diodora copiosa | Sp. nov | Valid | Berezovsky | Eocene | | Ukraine | A species of Diodora. |
| Diodora parra | Sp. nov | Valid | Berezovsky & Girik | Eocene | | Ukraine | A species of Diodora. |
| Donaldina dubia | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Donaldinidae, a species of Donaldina. |
| Donaldina parva | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Donaldinidae, a species of Donaldina. |
| Drilliola terranigra | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Drilliola. |
| Eucochlis obliquecostata | Sp. nov | Valid | Nützel in Hautmann et al. | Early Triassic | | China | A member of Trochoidea belonging to the family Eucochlidae, a species of Eucochlis. |
| Eirlysia globosa | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae, a species of Eirlysia. |
| Eirlysia lata | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae, a species of Eirlysia. |
| Eirlysia lens | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae, a species of Eirlysia. |
| Eirlysia nodata | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae, a species of Eirlysia. |
| Eirlysia scalare | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae, a species of Eirlysia. |
| Eirlysia seminuda | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae, a species of Eirlysia. |
| Eirlysia undata | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae, a species of Eirlysia. |
| Eocypraea sautereaui | Sp. nov | Valid | Belliard & Gain | | | France | |
| Eratoidea antoniae | Sp. nov | Valid | Sosso, Brunetti & Dell'Angelo | Miocene (Tortonian) | | Italy | A member of Marginellidae, a species of Eratoidea. |
| Eulimella dianeae | Sp. nov | Valid | Landau & LaFollette | Miocene | Cantaure Formation | Venezuela | A member of Pyramidellidae, a species of Eulimella. |
| Eunerinea? neuqueniana | Sp. nov | Valid | Ferrari & Damborenea | Middle Jurassic (early Bajocian) | Neuquén Basin | Argentina | A member of Eunerineidae, possibly a species of Eunerinea. |
| Fetaspira | Gen. et sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae. The type species is Fetaspira semifacta. |
| Floribella mus | Sp. nov | Valid | Lozouet | Oligocene | | France | A member of Aplysiidae, a species of Floribella. |
| Fusiaphera esus | Sp. nov | Valid | Pacaud, Ledon & Loubry | Eocene (Ypresian) | Paris Basin | France | A member of Cancellariidae, a species of Fusiaphera. |
| Fusiaphera kassitiana | Sp. nov | Valid | Pacaud, Ledon & Loubry | Late Cretaceous (Maastrichtian) | | Iran | A member of Cancellariidae, a species of Fusiaphera. |
| Fusinus raouli | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Fusinus. |
| Gibboscala simbirskensis | Sp. nov | Valid | Blagovetshenskiy | Early Cretaceous | | Russia | A wentletrap, a species of Gibboscala. |
| Glabrocingulum piktorskyi | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Eotomariidae, a species of Glabrocingulum. |
| Globosospirina | Gen. et sp. nov | Valid | Waterhouse | Permian | Tiverton Formation | Australia | A member of Eotomariidae. The type species is G. mcclungi. |
| Globularia andina | Sp. nov | Valid | Ferrari & Damborenea | Middle Jurassic (early Bajocian) | Neuquén Basin | Argentina | A member of Ampullinidae, a species of Globularia. |
| ?Goniochilus achaiae | Sp. nov | Valid | Esu & Girotti | Early Pleistocene | Synania Formation | Greece | A member of Hydrobiidae, possibly a species of Goniochilus. |
| Goniodostomia bicarinata | Sp. nov | Valid | Landau & LaFollette | Miocene | Cantaure Formation | Venezuela | A member of Pyramidellidae, a species of Goniodostomia. |
| Gyraulus sauerzopfi | Nom. nov | Valid | Neubauer et al. | Miocene (late Serravallian) | | Austria  Romania  Slovakia  Slovenia | A member of Planorbidae; a replacement name for Gyraulus vermicularis (Stoliczka, 1862) (preoccupied). |
| Hayamiella schaeferi | Sp. nov | Valid | Gründel, Keupp & Lang | Late Jurassic (Kimmeridgian) | | Germany | A sea snail belonging to the family Neritopsidae; a species of Hayamiella. |
| ?Helicopsis piedmontanica | Sp. nov | Valid | Harzhauser, Neubauer & Esu in Harzhauser et al. | Miocene (late Messinian) | | Italy | A member of Hygromiidae, possibly a species of Helicopsis. |
| Hydrocena moncuccoensis | Sp. nov | Valid | Harzhauser, Neubauer & Esu in Harzhauser et al. | Miocene (late Messinian) | | Italy | A member of Hydrocenidae, a species of Hydrocena. |
| Hyphantozyga noinskyi | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Pseudozygopleuridae, a species of Hyphantozyga. |
| Iolaea miocenica | Sp. nov | Valid | Landau & LaFollette | Miocene | Cantaure Formation | Venezuela | A member of Pyramidellidae. Originally described as a species of Iolaea, but subsequently transferred to the genus Mulderia. |
| Iselica belliata | Sp. nov | Valid | Landau & LaFollette | Miocene | Cantaure Formation | Venezuela | A member of Pyramidellidae, a species of Iselica. |
| Islamia amiatae | Sp. nov | Valid | Esu & Girotti | Miocene (early Messinian) | Velona Basin | Italy | A species of Islamia. |
| Islamia bambolii | Sp. nov | Valid | Esu & Girotti | Miocene (late Tortonian) | Baccinello-Cinigiano Basin | Italy | A species of Islamia. |
| ?Islamia corinthica | Sp. nov | Valid | Esu & Girotti | Early Pleistocene | Synania Formation | Greece | Possibly a species of Islamia. |
| Ividella guppyi | Sp. nov | Valid | Landau & LaFollette | Miocene | Cantaure Formation | Venezuela | A member of Pyramidellidae, a species of Ividella. |
| Jania colridusensis | Sp. nov | Valid | Pacaud & Leroy in Pacaud | Paleocene (Thanetian) | | France | A member of Buccinidae, a species of Jania. |
| Juvenispira | Gen. et sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Phymatopleuridae. The type species is Juvenispira esaulovae. |
| Kadolskya | Gen. et comb. nov | | Neubauer & Harzhauser in Neubauer, Mandic & Harzhauser | Miocene (Langhian) | | Croatia | A member of Hydrobiidae; a new genus for "Lithoglyphus" panicum Neumayr (1869). |
| Kazanella | Gen. et comb. nov | Junior homonym | Mazaev | Permian (Kazanian) | | Russia | A member of Orthonematidae. The type species is "Turbonilla" volgensis Golowkinsky (1868). The generic name is a junior homonym of Kazanella Martynov (1930). Mazaev (2016) coined a replacement generic name Kazankiella |
| Kleinella pumila | Sp. nov | Valid | Landau & LaFollette | Miocene | Cantaure Formation | Venezuela | A member of Pyramidellidae, a species of Kleinella. |
| Laeviphitus aquitanicus | Sp. nov | Valid | Lozouet | Miocene | | France | A member of Elachisinidae, a species of Laeviphitus. |
| Latiala? callositae | Sp. nov | Valid | Ayoub-Hannaa et al. | Late Cretaceous (early Cenomanian) | | Serbia | A sea snail, possibly a species of Latiala. |
| Latirulus ferratus | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Latirulus. |
| Latirulus lesbarritzensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Latirulus. |
| Latirulus poustagnacensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Latirulus. |
| Latirulus rivulensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Latirulus. |
| Latirulus subangulatus | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Latirulus. |
| Latirulus virodunensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Latirulus. |
| Leptoptygma gremechaensis | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A species of Leptoptygma. |
| Levizygopleura elegans | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Pseudozygopleuridae, a species of Levizygopleura. |
| Lithoglyphus marci | Sp. nov | Valid | Esu & Girotti | Early Pleistocene | Synania Formation | Greece | A species of Lithoglyphus. |
| Loxacypraea plumbea | Sp. nov | Valid | Dolin | Early Miocene | | France | A member of Cypraeidae, a species of Loxacypraea. |
| Loxacypraea testudinea | Sp. nov | Valid | Dolin | Early Miocene | | United States | A member of Cypraeidae, a species of Loxacypraea. |
| Loxacypraea utricula | Sp. nov | Valid | Dolin | Early Miocene | | France | A member of Cypraeidae, a species of Loxacypraea. |
| Lucilla miocaenica | Sp. nov | Valid | Harzhauser, Neubauer & Esu in Harzhauser et al. | Miocene (late Messinian) | | Italy | A member of Helicodiscidae, a species of Lucilla. |
| Lutetiella | Gen. et sp. et comb. nov | Valid | Kadolsky | Eocene | | France  Germany | Possibly a member of Hydrobiidae. The type species is Lutetiella hartkopfi; genus also contains "Paludina" conica Prévost (1821). |
| Lyrofusus grateloupi | Sp. nov | Valid | Lozouet | Oligocene | | France | A member of Buccinidae, a species of Lyrofusus. |
| Macromphalus agnesae | Sp. nov | Valid | Pacaud & Pons | Eocene (Lutetian) | | France | A species of Macromphalus. |
| “Marginella” giuntellii | Sp. nov | Valid | Sosso, Brunetti & Dell'Angelo | Miocene (Tortonian) | | Italy | A member of Marginellidae, possibly a species of Marginella. |
| Marloffsteinia | Gen. et comb. nov | Valid | Nützel & Gründel | Jurassic (Pliensbachian to Kimmeridgian) | | Germany | A sea snail belonging to the family Eucycloscalidae. The type species is "Turbo" cyclostoma Benz in Zieten (1832); genus also includes "Turbo" funatoides Quenstedt (1881–84). |
| Medfrazyga? zaitzevi | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Palaeozygopleuridae, possibly a species of Medfrazyga. |
| Megatyloma forticallosa | Sp. nov | Valid | Lozouet | Oligocene | | France | A member of Tornidae, a species of Megatyloma. |
| Megistocerithium | Gen. et sp. nov | Valid | Kase in Kase et al. | Miocene | | Indonesia  Philippines | A member of Cerithioidea, possibly a member or a relative of the family Eustomatidae. The type species is Megistocerithium magoi. |
| Melanopsis glaubrechti | Sp. nov | Valid | Neubauer & Harzhauser in Neubauer, Harzhauser & Pipík | Late Miocene | Martin Formation | Slovakia | A member of Melanopsidae, a species of Melanopsis. |
| Melanopsis synaniae | Sp. nov | Valid | Esu & Girotti | Early Pleistocene | Synania Formation | Greece | A species of Melanopsis. |
| Melanopsis wilhelmi | Sp. nov | Valid | Esu & Girotti | Pleistocene | | Italy | A species of Melanopsis. |
| Mercuria baccinelliana | Sp. nov | Valid | Esu & Girotti | Miocene (late Tortonian) | Baccinello-Cinigiano Basin | Italy | A species of Mercuria. |
| Metaconulus mauliaensis | Sp. nov | Valid | Belliard & Gain | | | France | |
| Mexipyrgus viescaensis | Sp. nov | Valid | Czaja, Estrada-Rodríguez & Romero-Méndez | Holocene (sub-recent) | | Mexico | A species of Mexipyrgus. |
| Mitrella (Bastropia) llajasensis | Sp. nov | Valid | Squires | Early Eocene | Llajas Formation | United States | A member of Columbellidae, a species of Mitrella. |
| Mitrella repens | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Mitrella. |
| Mitrella subinflata | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Mitrella. |
| Mitrella vaporis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Mitrella. |
| Mitrolumna atypica | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Mitrolumna. |
| Mitrolumna oligomiocenica | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Mitrolumna. |
| Mitrolumna peyroti | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Mitrolumna. |
| Mitrolumna ventriosa | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Mitrolumna. |
| Nassaria europaea | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Nassaria. |
| Nassarius brebioni | Sp. nov | Valid | Van Dingenen et al. | Pliocene-Pleistocene | | France | A member of Nassariidae, a species of Nassarius. |
| Nassarius columbinus | Sp. nov | Valid | Van Dingenen et al. | Pliocene-Pleistocene | | France | A member of Nassariidae, a species of Nassarius. |
| Nassarius gendryi | Sp. nov | Valid | Van Dingenen et al. | Pliocene-Pleistocene | | France | A member of Nassariidae, a species of Nassarius. |
| Nassarius landreauensis | Sp. nov | Valid | Van Dingenen et al. | Pliocene-Pleistocene | | France | A member of Nassariidae, a species of Nassarius. |
| Nassarius martae | Sp. nov | Valid | Van Dingenen et al. | Pliocene-Pleistocene | | France | A member of Nassariidae, a species of Nassarius. |
| Nassarius merlei | Sp. nov | Valid | Van Dingenen et al. | Pliocene-Pleistocene | | France | A member of Nassariidae, a species of Nassarius. |
| Nassarius pacaudi | Sp. nov | Valid | Van Dingenen et al. | Pliocene-Pleistocene | | France | A member of Nassariidae, a species of Nassarius. |
| Nassarius palumbis | Sp. nov | Valid | Van Dingenen et al. | Pliocene-Pleistocene | | France | A member of Nassariidae, a species of Nassarius. |
| Nassarius plainei | Sp. nov | Valid | Van Dingenen et al. | Pliocene-Pleistocene | | France | A member of Nassariidae, a species of Nassarius. |
| Nassarius poteriensis | Sp. nov | Valid | Van Dingenen et al. | Pliocene-Pleistocene | | France | A member of Nassariidae, a species of Nassarius. |
| Nassarius turpis | Sp. nov | Valid | Van Dingenen et al. | Pliocene-Pleistocene | | France | A member of Nassariidae, a species of Nassarius. |
| Naticopsis? koljanuriensis | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Naticopsidae, possibly a species of Naticopsis. |
| Neilsonia nuda | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Eotomariidae, a species of Neilsonia. |
| Nemdaella | Gen. et sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Meekospiridae. The type species is Nemdaella leonovae. |
| Nixepileolus | Gen. et sp. nov | Valid | Guzhov & Zakharov | Mesozoic | | Russia | A member of Pectinibranchia. The type species is Nixepileolus depressus. |
| Nodosotrochus | Gen. et sp. et comb. nov | Valid | Gründel & Nützel | Early Jurassic | | France  Germany  Italy | A sea snail belonging to the family Eucycloscalidae. The type species is Nodosotrochus tricostatus; genus also contains, among others, "Trypanotrochus" broesamleni Gründel (2007), "Turbo" escheri Münster in Goldfuss (1844) and "Trochus" gaudryanus d’Orbigny (1853). |
| Novlepatella kossovajae | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Damilinidae, a species of Novlepatella. |
| Palaeostylus krasnovidovoensis | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Palaeostylidae, a species of Palaeostylus. |
| Palaeostylus krotovi | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Palaeostylidae, a species of Palaeostylus. |
| Palaeostylus kukarkensis | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Palaeostylidae, a species of Palaeostylus. |
| Palaeostylus stuckenbergi | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Palaeostylidae, a species of Palaeostylus. |
| Parthenina martae | Sp. nov | Valid | Landau & LaFollette | Miocene | Cantaure Formation | Venezuela | A member of Pyramidellidae, a species of Parthenina. |
| Parvulatopsis | Gen. et sp. et comb. nov | Valid | Gründel, Keupp & Lang | Late Jurassic (Kimmeridgian) | | France  Germany | A sea snail belonging to the superfamily Neritoidea and the family Parvulatopsidae. The type species is Parvulatopsis quinquecostatus; genus also contains "Nerita" rutyi Guirand & Ogérien (1865). |
| Permoconcha minutula | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Portlockiellidae, a species of Permoconcha. |
| Permocossmannina | Gen. et sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | Possibly a member of Tubiferidae. The type species is Permocossmannina kabanovi. |
| Peruvispira canningensis | Sp. nov | Valid | Taboada et al. | Early Permian | Calytrix Formation | Australia | A species of Peruvispira. |
| Pileopsella biconvexa | Sp. nov | Valid | Gründel, Keupp & Lang | Late Jurassic (Kimmeridgian) | | Germany | A sea snail belonging to the family Pileolidae; a species of Pileopsella. |
| Pisanella marieastridae | Nom. nov | Valid | Pacaud, Ledon & Loubry | Eocene | | France | A species of Pisanella; a replacement name for "Voluta" fusiformis Defrance (1829) (preoccupied). |
| Pisinna stampinensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A member of Anabathridae, a species of Pisinna. |
| Platyla manganellii | Sp. nov | Valid | Harzhauser, Neubauer & Esu in Harzhauser et al. | Miocene (late Messinian) | | Italy | A member of Hydrobiidae, a species of Platyla. |
| Plesiotriton aucoini | Sp. nov | Valid | Lesport, Cluzaud & Verhecken | Oligocene (late Rupelian) | | France | A member of Cancellariidae belonging to the subfamily Plesiotritoninae, a species of Plesiotriton. |
| Plesiotriton cailloelensis | Sp. nov | Valid | Pacaud, Ledon & Loubry | Eocene (Lutetian) | Paris Basin | France | A member of Cancellariidae belonging to the subfamily Plesiotritoninae, a species of Plesiotriton. |
| Plesiotriton calciatus | Sp. nov | Valid | Pacaud, Ledon & Loubry | Eocene (Lutetian) | Paris Basin | France | A member of Cancellariidae belonging to the subfamily Plesiotritoninae, a species of Plesiotriton. |
| Plesiotriton camiadeorum | Sp. nov | Valid | Lesport, Cluzaud & Verhecken | Oligocene (late Rupelian) | | France | A member of Cancellariidae belonging to the subfamily Plesiotritoninae, a species of Plesiotriton. |
| Plesiotriton clandestinus | Sp. nov | Valid | Pacaud, Ledon & Loubry | Eocene (Bartonian) | Paris Basin | France | A member of Cancellariidae belonging to the subfamily Plesiotritoninae, a species of Plesiotriton. |
| Plesiotriton evanesco | Sp. nov | Valid | Pacaud, Ledon & Loubry | Eocene (Lutetian) | Paris Basin | France | A member of Cancellariidae belonging to the subfamily Plesiotritoninae, a species of Plesiotriton. |
| Plesiotriton ganensis | Sp. nov | Valid | Lesport, Cluzaud & Verhecken | Eocene (Ypresian) | | France | A member of Cancellariidae belonging to the subfamily Plesiotritoninae, a species of Plesiotriton. |
| Plesiotriton jacquesponsi | Sp. nov | Valid | Pacaud, Ledon & Loubry | Eocene (Bartonian) | Paris Basin | France | A member of Cancellariidae belonging to the subfamily Plesiotritoninae, a species of Plesiotriton. |
| Plesiotriton teuleraensis | Sp. nov | Valid | Lesport, Cluzaud & Verhecken | Eocene (Ypresian) | | France | A member of Cancellariidae belonging to the subfamily Plesiotritoninae, a species of Plesiotriton. |
| Pleurofusia paulensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A member of Drilliidae, a species of Pleurofusia. |
| Pleurofusia pseudocrassinoda | Sp. nov | Valid | Lozouet | Oligocene | | France | A member of Drilliidae, a species of Pleurofusia. |
| Pleurofusia tauzini | Sp. nov | Valid | Lozouet | Oligocene | | France | A member of Drilliidae, a species of Pleurofusia. |
| Pleurotomaria bajociana | Sp. nov | Valid | Ferrari & Damborenea | Middle Jurassic (early Bajocian) | Neuquén Basin | Argentina | A member of Pleurotomariidae, a species of Pleurotomaria. |
| Pleurotomella eomargaritata | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Pleurotomella. |
| Pleurotomella espibosensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Pleurotomella. |
| Pleurotomella spinosa | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Pleurotomella. |
| Popovicia | Nom. nov | Valid | Neubauer & Harzhauser in Neubauer, Harzhauser & Pipík | Late Miocene to Pliocene | | Kosovo  Slovakia | A member of Viviparidae; a replacement name for Metohia Popović (1964) (preoccupied). The type species is "Metohia" levantica Popović (1964); genus also contains "Kosovia" compressa Pavlović (1931) and "Metohia" turriculoidea Popović (1964) |
| Profundiconus? hennigi | Sp. nov | Valid | Hendricks | Late Miocene | Cercado Formation | Dominican Republic | A member of Conidae, possibly a species of Profundiconus. |
| Promathildia? spinosa | Sp. nov | Valid | Ferrari & Damborenea | Middle Jurassic (early Bajocian) | Neuquén Basin | Argentina | A member of Gordenellidae, possibly a species of Promathildia. |
| Prososthenia? praeslavonica | Nom. nov | Valid | Mandic et al. | Miocene | | Serbia | A member of Hydrobiidae, possibly a species of Prososthenia; a replacement name for Hydrobia slavonica vitrella Brusina (1897) (raised to the rank of a separate species, preoccupied by Hydrobia vitrella Stefanescu, 1896). |
| Protocerion | Gen. et comb. nov | Valid | Harasewych et al. | Late Cretaceous (Maastrichtian) | Hell Creek Formation | United States | A probable ancestor of members of the family Cerionidae; a new genus for "Cerion" acherontis Roth & Hartman (1998). |
| Pseudamnicola? babindolensis | Nom. nov | Valid | Neubauer et al. | Middle or late Miocene | | Macedonia | A member of Hydrobiidae; a replacement name for Pseudamnicola? brusiniana (Pavlović, 1903) (preoccupied). |
| Pseudolatirus orthensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Pseudolatirus. |
| Pseudonerinea jovankae | Sp. nov | Valid | Ayoub-Hannaa et al. | Late Cretaceous (early Cenomanian) | | Serbia | A sea snail, a species of Pseudonerinea. |
| Ptychalaea mystica | Sp. nov | Valid | Stworzewicz & Pokryszko | Eocene | | Europe (Baltic Sea coast) | A species of Ptychalaea known from Baltic amber. |
| Purpurina liassica | Sp. nov | Valid | Nützel & Gründel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | |
| Pusillina aquensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Pusillina. |
| Pusillina protocarinata | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Pusillina. |
| Pyrgiscus caribbaeus | Sp. nov | Valid | Landau & LaFollette | Miocene | Cantaure Formation | Venezuela | A member of Pyramidellidae, a species of Pyrgiscus. |
| Pyrgiscus silvai | Sp. nov | Valid | Landau & LaFollette | Miocene | Cantaure Formation | Venezuela | A member of Pyramidellidae, a species of Pyrgiscus. |
| ?Pyrgula danielae | Sp. nov | Valid | Girotti in Esu & Girotti | Early Pleistocene | Synania Formation | Greece | Possibly a species of Pyrgula. |
| Pyrgula nikosi | Sp. nov | Valid | Esu & Girotti | Early Pleistocene | Synania Formation | Greece | A species of Pyrgula. |
| Radix kovaci | Sp. nov | Valid | Neubauer & Harzhauser in Neubauer, Harzhauser & Pipík | Late Miocene | Martin Formation | Slovakia | A member of Lymnaeidae, a species of Radix. |
| Retispira chernyshevi | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Bellerophontidae, a species of Retispira. |
| Rhabdocolpus (Infacerithium) excavatus | Sp. nov | Valid | Ferrari & Damborenea | Middle Jurassic (early Bajocian) | Neuquén Basin | Argentina | A member of Procerithiidae, a species of Rhabdocolpus. |
| Rimella cazesi | Sp. nov | Valid | Pacaud & Pons | Eocene (Bartonian) | | Egypt | A member of Rostellariidae, a species of Rimella. |
| Rimella gomezi | Sp. nov | Valid | Pacaud & Pons | Eocene (Bartonian) | | Spain | A member of Rostellariidae, a species of Rimella. |
| Rimella sandrinae | Sp. nov | Valid | Pacaud & Pons | Eocene (Lutetian) | | France | A member of Rostellariidae, a species of Rimella. |
| Rissoina chalossensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Rissoina. |
| Rissoina gerasimovi | Nom. nov | Valid | Faber & Egorov | Middle to Late Jurassic (Callovian to Oxfordian) | | Russia | Possibly a species of Rissoina; a replacement name for Rissoina exigua Gerasimov (1992) (preoccupied). |
| Royalella aufuga | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Donaldinidae, a species of Royalella. |
| Saccoia globosa | Sp. nov | Valid | Harzhauser, Neubauer & Esu in Harzhauser et al. | Miocene (late Messinian) | | Italy | A member of Hydrobiidae, a species of Saccoia. |
| Schobertinella | Gen. et sp. nov | Valid | Nützel & Gründel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | Genus includes new species Schobertinella heterogyrata. |
| Socenia antonellae | Sp. nov | Valid | Esu & Girotti | Miocene (early Messinian) | Velona Basin | Italy | A species of Socenia. |
| Solariella trivialis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Solariella. |
| Solariorbis oostrombusensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A member of Tornidae, a species of Solariorbis. |
| Soleniscus netchaevi | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Soleniscidae, a species of Soleniscus. |
| Striatoconulus? trimeuselensis | Sp. nov | Valid | Nützel & Gründel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | |
| Strobeus rozeni | Sp. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Soleniscidae, a species of Strobeus. |
| Stuckenbergispira | Gen. et sp. et comb. nov | Valid | Mazaev | Permian (Kazanian) | | Russia | A member of Platyceratidae. The type species is Stuckenbergispira kazanensis; genus also includes "Capulus" permocarbonicus Stuckenberg (1898). |
| Sulcoactaeon sendelbachensis | Sp. nov | Valid | Nützel & Gründel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | |
| Taimyroconus | Gen. et sp. nov | Valid | Guzhov & Zakharov | Mesozoic | | Russia | A member of Calyptraeidae. The type species is Taimyroconus zakharovi. |
| Tessarolax alaskana | Sp. nov | Valid | Saul & Squires | Late Cretaceous (late Turonian to early Coniacian) | | United States | A member of Aporrhaidae, a species of Tessarolax. |
| Tessarolax bullardi | Sp. nov | Valid | Saul & Squires | Late Cretaceous (middle Coniacian to early Campanian) | | Canada  United States | A member of Aporrhaidae, a species of Tessarolax. |
| Tessarolax gabbi | Nom. nov | Valid | Saul & Squires | Early Cretaceous (late Hauterivian, possibly also late Barremian) | | Canada  United States | A member of Aporrhaidae, a species of Tessarolax; a replacement name for "Helicaulax" bicarinata Gabb (1869). |
| Tessarolax grahami | Sp. nov | Valid | Saul & Squires | Late Cretaceous (early Campanian) | | Canada  United States | A member of Aporrhaidae, a species of Tessarolax. |
| Tessarolax louellae | Sp. nov | Valid | Squires in Saul & Squires | Late Cretaceous (middle late Campanian) | | Canada  United States? | A member of Aporrhaidae, a species of Tessarolax. |
| Tessarolax teleos | Sp. nov | Valid | Saul & Squires | Late Cretaceous (late early to early late Maastrichtian) | El Piojo Formation Moreno Formation | United States | A member of Aporrhaidae, a species of Tessarolax. |
| Theodoxus patrae | Sp. nov | Valid | Esu & Girotti | Early Pleistocene | Synania Formation | Greece | A species of Theodoxus. |
| Tocobaga | Gen. et comb. nov | Valid | Auffenberg, Slapcinsky & Portell | Miocene | Arcadia Formation St. Marks Formation? | United States | A member of Bulimulidae. A new genus for "Partula" americana Heilprin (1886); genus also contains "Bulimus" floridanus Conrad (1846) and "Bulimulus" americanus wakullae Mansfield (1937) (reranked as a separate species Tocobaga wakullae). |
| Tournouerina ronaldi | Sp. nov | Valid | Esu & Girotti | Early Pleistocene | Synania Formation | Greece | A species of Tournouerina. |
| Tournouerina turiecensis | Sp. nov | Valid | Neubauer & Harzhauser in Neubauer, Harzhauser & Pipík | Late Miocene | Martin Formation | Slovakia | A member of Hydrobiidae, a species of Tournouerina. |
| Tricarilda recta | Sp. nov | Valid | Nützel & Gründel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | |
| Tricarilda schoberti | Sp. nov | Valid | Nützel & Gründel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | |
| Tripartella neubaueri | Sp. nov | Valid | Nützel & Gründel | Early Jurassic (Pliensbachian) | Amaltheenton Formation | Germany | |
| Tritonoharpa aquitaniensis | Sp. nov | Valid | Lesport, Cluzaud & Verhecken | Miocene (early Burdigalian) | | France | A member of Cancellariidae belonging to the subfamily Plesiotritoninae, a species of Tritonoharpa. |
| Tritonoharpa caunbonensis | Sp. nov | Valid | Pacaud, Ledon & Loubry | Eocene (Bartonian) | | France | A member of Cancellariidae belonging to the subfamily Plesiotritoninae, a species of Tritonoharpa. |
| Tritonoharpa mariechristinae | Sp. nov | Valid | Lesport, Cluzaud & Verhecken | Miocene (Langhian) | | France | A member of Cancellariidae belonging to the subfamily Plesiotritoninae, a species of Tritonoharpa. |
| Tritonoharpa renardi | Sp. nov | Valid | Lesport, Cluzaud & Verhecken | Miocene (Serravallian) | | France | A member of Cancellariidae belonging to the subfamily Plesiotritoninae, a species of Tritonoharpa. |
| Trivia merlini | Sp. nov | Disputed | Fehse & Van de Haar | Pliocene-Pleistocene | | Belgium | A species of Trivia. Van Nieulande et al. (2022) considered it to be a junior synonym of Trivia monacha (da Costa, 1778). |
| Trochotoma (Placotoma) | Nom. nov et sp. nov | Valid | Ferrari et al. | Jurassic (Pliensbachian to Kimmeridgian) | Piedra Pintada Formation | Argentina  France  Germany | A member of Trochotomidae, a subgenus of Trochotoma; a replacement name for Discotoma Haber (1934). The type species of the subgenus is "Ditremaria" amata d’Orbigny (1850); the subgenus also includes new species Trochotoma (Placotoma) neuquensis, as well as "Ditremaria" suevica Quenstedt (1881–84). Considered to be a separate genus by Gründel, Keupp & Lang (2017). |
| Trochotoma (Trochotoma) protonotialis | Sp. nov | Valid | Ferrari et al. | Early Jurassic (Pliensbachian) | Piedra Pintada Formation | Argentina | A member of Trochotomidae, a species of Trochotoma. |
| Tryonia hershleri | Sp. nov | Valid | Czaja & Estrada-Rodríguez | Late Pleistocene | | Mexico | A species of Tryonia. |
| Tryonia pseudocircumstriata | Sp. nov | Valid | Czaja & Estrada-Rodríguez | Late Pleistocene | | Mexico | A species of Tryonia. |
| Turbonilla paraguanensis | Sp. nov | Valid | Landau & LaFollette | Miocene | Cantaure Formation | Venezuela | A member of Pyramidellidae, a species of Turbonilla. |
| Tylostoma ranchariensis | Sp. nov | Valid | Pereira et al. | Early Cretaceous (Aptian-Albian) | Romualdo Formation | Brazil | A member of Naticidae, a species of Tylostoma. |
| Unitas ponsi | Sp. nov | Valid | Lozouet | Oligocene | | France | A member of Cancellariidae, a species of Unitas. |
| Valvata ducati | Sp. nov | Valid | Esu & Girotti | Pleistocene | | Italy | A species of Valvata. |
| Valvata pyramidula | Sp. nov | Valid | Esu & Girotti | Early Pleistocene | Synania Formation | Greece | A species of Valvata. |
| Viviparus codomorphus | Sp. nov | Valid | Hartman | Paleocene (Torrejonian) | Fort Union Formation | United States | A species of Viviparus. |
| Viviparus kochanskyae | Sp. nov | Valid | Mandic et al. | Pliocene | | Croatia  Serbia | A species of Viviparus. |
| Viviparus pipiki | Sp. nov | Valid | Neubauer & Harzhauser in Neubauer, Harzhauser & Pipík | Late Miocene | Martin Formation | Slovakia | A member of Viviparidae, a species of Viviparus. |
| Viviparus purgatorius | Sp. nov | Valid | Hartman | Paleocene (Puercan to Torrejonian) | Fort Union Formation Ravenscrag Formation | Canada  United States | A species of Viviparus. |
| Wallowiella (Plicaropsis) | Subgen. et comb. et sp. nov | Valid | Gründel, Keupp & Lang | Late Jurassic (Kimmeridgian) | | Germany | A sea snail belonging to the family Neritopsidae; a subgenus of Wallowiella. The type species is "Neritites" cancellatus Stahl (1824); the subgenus also contains new species Wallowiella (Plicaropsis) compacta. |
| Zebina bespiso | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Zebina. |
| Zebina sarcignanensis | Sp. nov | Valid | Lozouet | Oligocene | | France | A species of Zebina. |

## Other molluscs

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes |
| Admytilus | Gen. et sp. nov | Valid | Berezovsky | Eocene | | Ukraine | A bivalve belonging to the family Mytilidae. The type species is Admytilus alius. |
| Adrarunio | Gen. et comb. nov | Valid | Van Damme & Bogan in Van Damme, Bogan & Dierick | Jurassic | Irhazer Group | Niger | A bivalve belonging to the family Nakamuranaiadidae; a new genus for "Unio" deserticus Mongin (1968). |
| Afrohyrioides | Gen. et comb. nov | Valid | Van Damme & Bogan in Van Damme, Bogan & Dierick | Jurassic | | Egypt  Niger | A bivalve belonging to the family Unionidae; a new genus for "Unio" jowikolensis Newton (1909). |
| Anechinocardium | Gen. et comb. nov | Valid | Hickman | Late Eocene to Oligocene | Eugene Formation Keasey Formation Pittsburg Bluff Formation | United States | A cockle. The type species is "Cardium" weaveri Anderson & Martin (1914); genus also includes "Nemocardium" formosum Hickman (1969) and "Cardium" lorenzanum Arnold (1908). |
| Aphanaia kletzi | Sp. nov | Valid | Biakov & Kutygin | Permian (late Sakmarian) | | Russia | A bivalve, a species of Aphanaia. |
| Arcopsis (Arcopsis) tenuicostata | Sp. nov | Valid | Berezovsky | Late Eocene | Mandrikovka Beds | Ukraine | A bivalve, a species of Arcopsis. |
| Assytilus | Gen. et sp. nov | Valid | Berezovsky | Eocene | | Ukraine | A bivalve belonging to the family Mytilidae. The type species is Assytilus alpha. |
| Astartella heideckeri | Sp. nov | Valid | Waterhouse | Permian | Tiverton Formation | Australia | An astartid bivalve. |
| Astartella? stefaniae | Sp. nov | Valid | Hautmann in Hautmann et al. | Early Triassic | | China | An astartid bivalve, possibly a species of Astartella. |
| Auroradiolites | Gen. et comb. nov | Valid | Rao et al. | Early Cretaceous (Aptian to Albian) | | Afghanistan  China  India  Iran  Japan  Pakistan | A radiolitid rudist. A new genus for "Praeradiolites" gilgitensis Douvillé (1926); genus also contains "Sphaerulites" griesbachi Douvillé (1926) and "Praeradiolites" biconvexus Yang et al. (1982). |
| Bacatigonia | Gen. et comb. nov | Valid | Cooper | Early Cretaceous (Albian) | | Belgium  Kazakhstan | A bivalve belonging to the family Pterotrigoniidae. The type species is "Linotrigonia (Oistotrigonia)" immutata Savel’ev (1958); genus also includes B. dzharmanensis (Vinokurova in Vinokurova & Romanovskaja, 1972), B. kajragatshensis (Vinokurova in Vinokurova & Romanovskaja, 1972), B. ludovicae (Briart & Cornet, 1868) and B. tshuenkoi (Romanovskaja & Vinokurova in Vinokurova & Romanovskaja, 1972). |
| Bakulia | Gen. et 2 sp. nov | Valid | Silantiev & Chandra in Silantiev, Chandra & Urazaeva | Permian | Raniganj Formation | India | A bivalve belonging to the family Senderzoniellidae. The type species is Bakulia damodarensis; genus also includes Bakulia jhamuniaensis. |
| Balaklavella | Gen. et comb. nov | Valid | Cooper | Early Cretaceous | | Crimean Peninsula | A bivalve belonging to the family Rutitrigoniidae. The type species is "Rutitrigonia" balaklavensis Yanin (2004). |
| Barbatia (Barbatia) soluta | Sp. nov | Valid | Berezovsky | Late Eocene | Mandrikovka Beds | Ukraine | A bivalve, a species of Barbatia. |
| Bentharca steffeni | Sp. nov | Valid | Amano, Jenkins & Nishida | Paleocene | Katsuhira Formation | Japan | An ark clam, a species of Bentharca. |
| Bicorbula kutchensis | Sp. nov | Valid | Halder & Bano | Paleogene | | India | A bivalve belonging to the family Corbulidae. |
| Brachidontes araripensis | Sp. nov | Valid | Pereira et al. | Early Cretaceous (Aptian-Albian) | Romualdo Formation | Brazil | A bivalve belonging to the family Mytilidae, a species of Brachidontes. |
| Caestocorbula gujaratensis | Sp. nov | Valid | Halder & Bano | Paleogene | | India | A bivalve belonging to the family Corbulidae. |
| Callistochiton borellianus | Sp. nov | Valid | Dell’Angelo et al. | Miocene (Messinian) | | Italy | A chiton belonging to the family Callistoplacidae, a species of Callistochiton. |
| Circunula | Gen. et comb. nov | Valid | Koppka | Late Jurassic | | Russia  Czech Republic  France  Germany  Poland  Switzerland | A foam oyster; a new genus for "Ostrea" cotyledon Contejean (1859). |
| Coactunio | Gen. et comb. nov | Valid | Van Damme & Bogan in Van Damme, Bogan & Dierick | Middle or Late Jurassic | Irhazer Group | Niger | A bivalve belonging to the family Unionidae; a new genus for ?"Chamberlainia" iguallalensis Mongin (1963). |
| Conchocele bathyaulax | Sp. nov | Valid | Hickman | Late Eocene to early Oligocene | Keasey Formation | United States | A bivalve belonging to the family Thyasiridae, a species of Conchocele. |
| Conchocele taylori | Sp. nov | Valid | Hickman | Late Eocene | Keasey Formation | United States | A bivalve belonging to the family Thyasiridae, a species of Conchocele. |
| Cosmetopsis glimmerodensis | Sp. nov | Valid | Janssen | Oligocene | Kassel Formation | Germany | A limopsid bivalve, a species of Cosmetopsis. |
| Cosmetopsis latdorfensis | Sp. nov | Valid | Janssen | Oligocene | | Belgium  Germany | A limopsid bivalve, a species of Cosmetopsis. |
| Cosmetopsis mothsorum | Sp. nov | Valid | Janssen | Oligocene | | Germany | A limopsid bivalve, a species of Cosmetopsis. |
| Cyclocardia moniligena | Sp. nov | Valid | Hickman | Eocene-Oligocene boundary | Keasey Formation | United States | A bivalve, a species of Cyclocardia. |
| Earlpackardia | Gen. et comb. nov | Valid | Cooper | Cretaceous | | Japan  Philippines  United States ( Oregon) | A bivalve belonging to the family Rutitrigoniidae. The type species is "Trigonia" jacksonensis Packard (1921); genus also includes E. yeharai (Kobayashi, 1954) and E. amagensis (Kobayashi, 1957). |
| Elianella | Gen. et comb. nov | Junior homonym | Cooper | Late Cretaceous (Maastrichtian) | | Madagascar | A bivalve belonging to the family Rutitrigoniidae. The type species is "Trigonia" patonensis Basse (1931); genus also includes E. gilleti (Basse, 1932). The generic name is preoccupied by Elianella Vercammen-Grandjean (1956); Ceccolini & Cianferoni (2021) coined a replacement name Elianegonia. |
| Elrhazunio | Gen. et sp. nov | Valid | Van Damme & Bogan in Van Damme, Bogan & Dierick | Early Cretaceous (Aptian or Albian) | Elrhaz Formation | Niger | A bivalve which might be a member of the family Unionidae or the family Margaritiferidae. The type species is Elrhazunio problematica. |
| Enigmaconus? pyramidalis | Sp. nov | Valid | Kouchinsky & Vendrasco in Kouchinsky et al. | Early Cambrian | Emyaksin Formation | Russia | A mollusc of uncertain phylogenetic placement, possibly a monoplacophoran; an enigmaconid, possibly a species of Enigmaconus. |
| Erichlangeia | Gen. et comb. nov | Valid | Cooper | Late Jurassic (Kimmeridgian) | | Tanzania | A bivalve belonging to the family Rutitrigoniidae. The type species is "Trigonia" dietrichi Lange (1914). |
| Etheripecten playfordi | Sp. nov | Valid | Waterhouse | Permian | Tiverton Formation | Australia | A bivalve belonging to the family Heteropectinidae. |
| Eufalagonia | Gen. et comb. nov | Valid | Cooper | Late Cretaceous (Maastrichtian) | | United States ( Alabama) | A bivalve belonging to the family Pterotrigoniidae. Genus includes "Trigonia" angulicostata Gabb (1876). |
| Eurotrigonia | Gen. et comb. nov | Valid | Cooper | Early Cretaceous (Berriasian-Aptian) | | Kazakhstan  Russia  Turkmenistan  United Kingdom | A bivalve belonging to the family Pterotrigoniidae. The type species is "Pterotrigonia" mantelli Casey (1962); genus also includes E. akuschaensis (Anthula, 1899), E. aliformis (Parkinson, 1811), E. anterior (Casey, 1962), E. attenuata (Lycett, 1875), E. caudata (Agassiz, 1840), E. crassicostata (van Hoepen, 1929), E. cubanica (Sinzow, 1913), E. cuneiformis (Conrad, 1852), E. druzczici (Yanin, 2004), E. gokderensis (Savel’ev, 1958), E? hemilunaris (Savel’ev, 1958), E. hungarica (Bockh, 1910), E. kopetdagensis (Aliev & Aliev, 1961), E. percaudata (Rollier, 1913), E. schapsugensis (Mordvilko, 1932), E. subaliformis (Savel’ev, 1958), E. subpiriformis (Savel’ev, 1958) and E. vectiana (Lycett, 1875). |
| Eurydesma glaebula | Sp. nov | Valid | Waterhouse | Permian | Tiverton Formation | Australia | A bivalve belonging to the group Pectinida and the family Eurydesmidae. |
| Gabbigonia | Gen. et comb. nov | Valid | Cooper | Late Cretaceous (Campanian) | | United States | A bivalve belonging to the family Pterotrigoniidae. The type species is "Trigonia" eufalensis Gabb (1860); genus also includes G. gabbi (Stephenson, 1941), G. kummeli (Weller, 1907), G. moorei (Stephenson, 1941), and G. marionensis (Stephenson, 1923). |
| Gangamya | Gen. et 3 sp. nov | Valid | Silantiev & Chandra in Silantiev, Chandra & Urazaeva | Permian | Damuda Group | India | A bivalve belonging to the family Prokopievskiidae. The type species is Gangamya minutula; genus also includes Gangamya elongata and Gangamya jhariaensis. |
| Gastrochaena beringiana | Sp. nov | Valid | Kalishevich | Paleogene | | Russia | A bivalve, a species of Gastrochaena. |
| Glycymeris (Glycymeris) dimicostata | Sp. nov | Valid | Berezovsky | Late Eocene | Mandrikovka Beds | Ukraine | A bivalve, a species of Glycymeris. |
| Glycymeris (Glycymeris) eos | Sp. nov | Valid | Berezovsky | Late Eocene | Mandrikovka Beds | Ukraine | A bivalve, a species of Glycymeris. |
| Glycymeris (Glycymeris) indefinita | Sp. nov | Valid | Berezovsky | Late Eocene | Mandrikovka Beds | Ukraine | A bivalve, a species of Glycymeris. |
| Glycymeris (Glycymeris) insentira | Sp. nov | Valid | Berezovsky | Late Eocene | Mandrikovka Beds | Ukraine | A bivalve, a species of Glycymeris. |
| Glycymeris (Glycymeris) manitesta | Sp. nov | Valid | Berezovsky | Late Eocene | Mandrikovka Beds | Ukraine | A bivalve, a species of Glycymeris. |
| Glycymeris (Glycymeris) parma | Sp. nov | Valid | Berezovsky | Late Eocene | Mandrikovka Beds | Ukraine | A bivalve, a species of Glycymeris. |
| Gondwanadontella | Gen. et sp. nov | Valid | Silantiev & Chandra in Silantiev, Chandra & Urazaeva | Permian | Raniganj Formation | India | A bivalve belonging to the family Anadontellidae. The type species is Gondwanadontella indiana. |
| Gondwanaiadites | Gen. et 2 sp. nov | Valid | Silantiev & Chandra in Silantiev, Chandra & Urazaeva | Permian | Raniganj Formation | India | A bivalve belonging to the family Naiaditidae. The type species is Gondwanaiadites betekhtinae; genus also includes Gondwanaiadites angustata. |
| Grandigonia | Gen. et comb. nov | Valid | Cooper | Early Cretaceous (Hauterivian) | | France  United Kingdom | A bivalve belonging to the family Iotrigoniidae. The type species is "Trigonia" robinaldina d'Orbigny (1844). |
| Haumurigonia | Gen. et comb. nov | Valid | Cooper | Late Cretaceous (Campanian-Maastrichtian) | | Antarctica  Argentina  Chile  New Zealand | A bivalve belonging to the family Pterotrigoniidae. The type species is "Trigonia" pseudocaudata Hector (1886); genus also includes H. bastamantina (Feruglio, 1935), H. dumbeae (Freneix, 1958), H. malagninoi (Medina, 1980), H. spikermanni (Medina, 1980), H. waitangiensis (Fleming, 1987) and H. windhauseniana (Wilckens, 1921). |
| Helvetostrea | Gen. et comb. nov | Valid | Koppka | Middle? to Late Jurassic | | Switzerland  Germany?  Poland?  United Kingdom? | A flemingostreid oyster; a new genus for "Ostrea" sequana Thurmann & Etallon (1862). Genus might also contain "Ostrea" caprina Rollier (1917), "Ostrea" oxfordiana Rollier (1917) and "Ostrea" expansa Sowerby (1819). |
| Henrywoodsia | Gen. et comb. nov | Valid | Cooper | Late Cretaceous (Campanian-Maastrichtian) | | New Zealand | A bivalve belonging to the family Pterotrigoniidae. The type species is "Trigonia" waiparensis Woods (1917); genus also includes H. ongleyi (Fleming, 1987) and H. pygoscelium (Wilckens, 1910). |
| Illyricocongeria | Gen. et comb. et sp. nov | | Mandic in Neubauer, Mandic & Harzhauser | Miocene | | Bosnia and Herzegovina  Croatia | A member of Dreissenidae. The type species is "Congeria" aletici Brusina (1907); genus also includes Illyricocongeria acuta (Kochansky-Devidé in Kochansky-Devidé & Slišković, 1981), I. avis (Kochansky-Devidé in Kochansky-Devidé & Slišković, 1981), I. bosniaca (Katzer, 1913), I. bosniaca acuticostata (Kochansky-Devidé in Kochansky-Devidé & Slišković, 1981), I. clivunensis (Kochansky-Devidé in Kochansky-Devidé & Slišković, 1981), I. cor (Kochansky-Devidé in KochanskyDevidé & Slišković, 1978), I. cvitanovici (Brusina, 1907), I. dalmatica (Brusina, 1874), I. drvarensis (Toula, 1913), I. frici (Brusina, 1904), I. fuchsi (Pilar, 1873), I. katzeri (Kochansky-Devidé in Kochansky-Devidé & Slišković, 1978), I. novica (Kochansky-Devidé in Kochansky-Devidé & Slišković, 1978), I. obliqua (Kochansky-Devidé in Kochansky-Devidé & Slišković, 1978), I. pernaeformis (Andrusov, 1897), I. pikijae (Kochansky-Devidé, 1979), I. scaphula (Brusina in Andrusov, 1897), I. stojcicae (Kochansky-Devidé in Kochansky-Devidé & Slišković, 1978), I. volucris (Kochansky-Devidé in Kochansky-Devidé & Slišković, 1978), as well as new species Illyricocongeria moirae and possibly also I.? soklici (Kochansky-Devidé in Kochansky-Devidé & Slišković, 1978). |
| Incomatiella | Gen. et comb. nov | Valid | Cooper | Cretaceous (?Albian-Maastrichtian) | | Mozambique Crimean Peninsula? | A bivalve belonging to the family Pterotrigoniidae. The type species is "Trigonia (Scabrotrigonia)" incomatensis Rennie (1936); genus also includes I. chivensis (Arkhanguelsky, 1916) and possibly I? taurica (Yanin, 2004). |
| Indonellina | Gen. et 2 sp. nov | Valid | Silantiev & Chandra in Silantiev, Chandra & Urazaeva | Permian | Raniganj Formation | India | A bivalve belonging to the family Prokopievskiidae. The type species is Indonellina triangulata; genus also includes Indonellina orbiculata. |
| Jaitlygonia | Gen. et comb. nov | Valid | Cooper | Late Cretaceous (Maastrichtian) | | India | A bivalve belonging to the family Rutitrigoniidae. The type species is "Trigonia" suborbicularis Forbes (1845); genus also includes J. indica (Stoliczka, 1871) and J. orientalis (Forbes, 1845). |
| Kauffmanella | Gen. et comb. nov | Valid | Cooper | Late Cretaceous (Campanian-Maastrichtian) | | United States | A bivalve belonging to the family Pterotrigoniidae. The type species is "Trigonia" haynensis Stephenson (1923); genus also includes K. cerulea (Whitfield, 1885). |
| Kellia saxiriva | Sp. nov | Valid | Hickman | Eocene-Oligocene boundary | Keasey Formation | United States | A bivalve belonging to the family Lasaeidae, a species of Kellia. |
| Kellia vokesi | Sp. nov | Valid | Hickman | Eocene-Oligocene boundary | Keasey Formation | United States | A bivalve belonging to the family Lasaeidae, a species of Kellia. |
| Leanzatrigonia | Gen. et comb. nov | Valid | Cooper | Cretaceous | | Argentina | A bivalve belonging to the family Pterotrigoniidae. The type species is "Trigonia" coihuicoensis Weaver (1931). |
| Lepidochitona gantensis | Sp. nov | Valid | Dell’Angelo et al. | Eocene (?late Lutetian to early Bartonian) | Kincses Formation | Hungary | A chiton, a species of Lepidochitona. |
| Lepidochitona szoetsi | Sp. nov | Valid | Dell’Angelo et al. | Eocene (?late Lutetian to early Bartonian) | Kincses Formation | Hungary | A chiton, a species of Lepidochitona. |
| Lepidochitona viciani | Sp. nov | Valid | Dell’Angelo et al. | Eocene (?late Lutetian to early Bartonian) | Kincses Formation | Hungary | A chiton, a species of Lepidochitona. |
| Leptochiton lignatilis | Sp. nov | Valid | Dell’Angelo, Bertolaso & Sosso in Bertolaso et al. | Miocene (Langhian to Tortonian) | Termina Formation | Italy | A chiton belonging to the family Leptochitonidae, a species of Leptochiton. |
| Levytrigonia | Gen. et comb. nov | Valid | Cooper | Middle Jurassic | | Argentina | A bivalve belonging to the family Iotrigoniidae. The type species is "Trigonia" covuncoensis Lambert (1944). |
| Limopsis indubia | Sp. nov | Valid | Berezovsky | Late Eocene | | Ukraine | A bivalve belonging to the family Limopsidae, a species of Limopsis. |
| Limopsis lacunosa | Sp. nov | Valid | Berezovsky | Late Eocene | | Ukraine | A bivalve belonging to the family Limopsidae, a species of Limopsis. |
| Limopsis obscura | Sp. nov | Valid | Berezovsky | Late Eocene | | Ukraine | A bivalve belonging to the family Limopsidae, a species of Limopsis. |
| Limopsis pretiosa | Sp. nov | Valid | Berezovsky | Late Eocene | | Ukraine | A bivalve belonging to the family Limopsidae, a species of Limopsis. |
| Limopsis quadrata | Sp. nov | Valid | Berezovsky | Late Eocene | | Ukraine | A bivalve belonging to the family Limopsidae, a species of Limopsis. |
| Lycettitrigonia | Gen. et comb. nov | Valid | Cooper | Late Jurassic (Kimmeridgian) to Late Cretaceous (Cenomanian) | | Egypt  France  India  Libya  Switzerland  United Kingdom  Jordan?  United States? | A bivalve belonging to the family Rutitrigoniidae. The type species is "Trigonia" excentrica Parkinson (1811); genus also includes L. affinis (Sowerby, 1818), L? analoga (Douvillé, 1916), L. beyrichi (Krumbeck, 1906), L. boloniensis (de Loriol, 1866), L. coquandiana (d'Orbigny, 1844), L. costatissima (Petter Receveur, 1955), L. debilis (Lycett, 1877), L? depauperata (Douvillé, 1916), L. dunscombensis (Lycett, 1877), L. laeviuscula (Lycett, 1875), L? lerchi (Hill, 1893), L. longa (Agassiz, 1840), L. pseudoexcentrica (von Hoppe, 1922), L. sanctaecrucis (Pictet & Campiche, 1866), L. semiculta (Forbes, 1845) and L? undulaptoplicata (Blanckenhorn, 1890). |
| Mackinnonia puppis | Sp. nov | Valid | Høyberget et al. | Early Cambrian | Ringstrand Formation | Norway | A helcionellid, a species of Mackinnonia. |
| Magallanesia rutogensis | Sp. nov | Valid | Rao et al. | Early Cretaceous (Albian) | Langshan Formation | China | A polyconitid rudist, a species of Magallanesia. |
| Makarenkoplax | Gen. et comb. nov | Valid | Sirenko & Dell’Angelo | Late Paleocene and Early Eocene | Luzanovka Beds Mandrikovka Beds | Ukraine | A chiton belonging to the group Chitonida and the superfamily Cryptoplacoidea. The type species is "Lepidochiton" vjalovi Makarenko (1969); genus also includes "Lepidochiton" menneri Makarenko (1969). |
| Mangyschlakella | Gen. et comb. nov | Valid | Cooper | Cretaceous (Aptian-Cenomanian) | | Belgium  Kazakhstan  Russia  United Kingdom | A bivalve belonging to the family Pterotrigoniidae. The type species is "Pterotrigonia" tatianae Savel’ev (1958); genus also includes M. elisae (Briart & Cornet, 1868), M. hemilunaris (Savel’ev, 1958), M. klytschevae (Savel’ev, 1958) and M. piriformis (Mordvilko, 1932). |
| Mayesella | Gen. et comb. nov | Valid | Cooper | Late Jurassic and Early Cretaceous | | Antarctica  Argentina  India  Kazakhstan  South Africa  Tanzania | A bivalve belonging to the family Iotrigoniidae. The type species is "Trigonia (Iotrigonia)" haughtoni Rennie (1936); genus also includes M. dubia (Kitchin, 1903), M. falcki (Rouillier & Vosinsky, 1849), M. feruglioi (Medina 1987), M. heterosculpta (Stanton, 1901), M. jakshysaurensis (Luppov, 1932), M. kuehni (Müller, 1900), M. recurva (Kitchin, 1903) and M. vau (Sharpe, 1856). |
| Mediata xixiangensis | Sp. nov | Valid | Shao et al. | Cambrian | | China | A member of the family Maikhanellidae. |
| Merismopteria cona | Sp. nov | Valid | Waterhouse | Permian | Tiverton Formation | Australia | A bivalve belonging to the family Pterineidae. |
| Moerella quasimacoma | Sp. nov | Valid | Hickman | Late Eocene to early Oligocene | Keasey Formation | United States | A bivalve belonging to the family Tellinidae, a species of Moerella. |
| Musagonia | Gen. et comb. nov | Valid | Cooper | Late Cretaceous (Coniacian) | | United States ( California) | A bivalve belonging to the family Pterotrigoniidae. The type species is "Trigonia" bowersiana Anderson (1958). |
| Noelmorrisia | Gen. et comb. nov | Valid | Cooper | Cretaceous (Aptian-Cenomanian) | | France  Kazakhstan | A bivalve belonging to the family Pterotrigoniidae. The type species is "Trigonia" fittoni Deshayes in Leymerie (1842); genus also includes N. danovi (Savel’ev, 1958), N. laeviarealis (Savel’ev, 1958), N. meyeri (Lycett, 1875) and possibly N? ninae (Savel’ev, 1958) and N? ornata (d’Orbigny, 1844). |
| Nucinella capsa | Sp. nov | Valid | Berezovsky | Late Eocene | Mandrikovka Beds | Ukraine | A bivalve, a species of Nucinella. |
| Nucinella explicata | Sp. nov | Valid | Berezovsky | Late Eocene | Mandrikovka Beds | Ukraine | A bivalve, a species of Nucinella. |
| Nucinella similis | Sp. nov | Valid | Berezovsky | Late Eocene | Mandrikovka Beds | Ukraine | A bivalve, a species of Nucinella. |
| Offneria prebetica | Sp. nov | Valid | Masse et al. | Early Cretaceous (early Aptian) | | Spain | A caprinid rudist, a species of Offneria. |
| Orbiculipecten cokeri | Sp. nov | Valid | Waterhouse | Permian | Tiverton Formation | Australia | A bivalve belonging to the family Streblochondriidae. |
| Orbigonina | Gen. et comb. nov | Valid | Cooper | Late Cretaceous (Turonian-Maastrichtian) | | Antarctica  Australia  New Caledonia  New Zealand  South Africa | A bivalve belonging to the family Pterotrigoniidae. The type species is "Trigonia" antarctica Wilckens (1910); genus also includes O. austronana (Stilwell & Gallagher, 2009), O. piripauana (Fleming, 1987) and O. saunali (Freneix, 1958). |
| Parachiton statianus | Sp. nov | Valid | Dell’Angelo et al. | Miocene (Tortonian) and Pliocene | | Italy  Spain | A chiton belonging to the family Leptochitonidae, a species of Parachiton. |
| Paracratis magdeburgensis | Sp. nov | Valid | Janssen | Oligocene | | Germany | A limopsid bivalve, a species of Paracratis. |
| Paracratis muelleri | Sp. nov | Valid | Janssen | Oligocene | | Germany | A limopsid bivalve, a species of Paracratis. |
| Paraheudeana soudanensis | Sp. nov | Valid | Van Damme & Bogan in Van Damme, Bogan & Dierick | Middle or Late Jurassic | Irhazer Group | Niger | A bivalve belonging to the family Margaritiferidae. Originally described as a species of Paraheudeana; Lopes-Lima et al. (2018) transferred this species to the genus Asturianaia. |
| Parainoceramya | Gen. et comb. nov | Valid | Ros-Franch et al. | Hettangian to Tithonian-Berriasian | | Argentina  France  Germany  New Zealand  Russia  United Kingdom  China?  Hungary?  India?  Italy?  Japan?  Turkey? | A bivalve belonging to the group Myalinida and possibly to the family Inoceramidae. The type species is "Crenatula" ventricosa de C. Sowerby (1823); genus also includes several other species formerly assigned to the genus Parainoceramus. |
| Pelecyogyra | Gen. et sp. nov | Valid | Ebbestad & Lefebvre | Ordovician (Tremadocian) | Fezouata Formation | Morocco | A member of Onychochilidae (a group of molluscs of uncertain phylogenetic placement, possibly gastropods). The type species is Pelecyogyra fezouataensis. |
| Perezella | Gen. et comb. nov | Junior homonym | Cooper | Middle Jurassic | | Chile | A bivalve belonging to the family Iotrigoniidae. The type species is "Vaugonia" fuenzalidai Reyes & Pérez (1984); genus also includes P. lissocostata (Reyes & Pérez, 1984). The generic name is preoccupied by Perezella Cépède (1910); Ceccolini & Cianferoni (2021) coined a replacement name Perezigonia. |
| Praescabrotrigonia | Gen. et comb. et nom. nov | Valid | Cooper | Cretaceous (Albian-Maastrichtian) | | Egypt  Jamaica  Morocco  Peru  United Kingdom  United States | A bivalve belonging to the family Pterotrigoniidae. The type species is "Trigonia" emoryi Conrad (1857); genus also includes P bartrami (Stephenson, 1923), P. clavigera (Cragin, 1893), P. crenulata (Lamarck, 1819), P. crenulifera (Lycett, 1877), P. douvillei (El Din, 1955), P. emoryoides (Trechmann, 1927), P. hottingeri (Freneix, 1972), P? larteti (Munier-Chalmas in litt., Mengaud 1920) and P. mooreana (Gabb, 1861), as well as P. olssoni (a replacement name for Trigonia (Scabrotrigonia) gerthi Olsson, 1944). |
| Primaspina banksi | Sp. nov | Valid | Waterhouse | Permian | Tiverton Formation | Australia | A bivalve belonging to the family Heteropectinidae. |
| Protraxia | Gen. et comb. nov | Valid | Waterhouse | Permian | Farley Formation | Australia | A bivalve belonging to family Pachydomidae. The type species is "Cardiomorpha" gryphoides de Koninck (1877); genus also includes "Edmondia" nobilissimus de Koninck (1876). |
| Pseudomyalina perquiritus | Sp. nov | Valid | Waterhouse | Permian | Tiverton Formation | Australia | A bivalve belonging to the superfamily Ambonychioidea and the family Myalinidae. |
| Pterotegulaedon | Gen. et comb. nov | Valid | Van Damme & Bogan in Van Damme, Bogan & Dierick | Early Cretaceous (Aptian or Albian) | Elrhaz Formation | Niger | An unionid bivalve belonging to the family Tegulaedontidae. A new genus for "Hyriopsis" nigeriensis Mongin (1968). Genus might also contain Hyriopsis nigeriensis forme tortuosa Mongin (1968) (reranked as a separate species ?Pterotegulaedon tortuosa), thought this species might belong to the family Unionidae or Margaritiferidae instead. |
| Pterotrigonioides | Gen. et comb. nov | Valid | Cooper | Early Cretaceous (?Berriasian-Hauterivian) | | Chile  South Africa | A bivalve belonging to the family Pterotrigoniidae. The type species is "Trigonia" rogersi Kitchin (1908); genus also includes P. savagei (Cooper, 1979). |
| Raniganjelia | Gen. et sp. nov | Valid | Silantiev & Chandra in Silantiev, Chandra & Urazaeva | Permian | Raniganj Formation | India | A bivalve belonging to the family Prokopievskiidae. The type species is Raniganjelia prolixa. |
| Renatoreyesia | Gen. et comb. nov | Valid | Cooper | Late Jurassic | | Chile | A bivalve belonging to the family Pterotrigoniidae. The type species is "Linotrigonia (Oistotrigonia?) chongi Pérez and Reyes (1985). |
| Ribeiria johni | Sp. nov | Valid | Polechová | Ordovician (late Katian) | Králův Dvůr Formation | Czech Republic | A ribeirioid rostroconch, a species of Ribeiria. |
| Rostrunio | Gen. et comb. nov | Valid | Van Damme & Bogan in Van Damme, Bogan & Dierick | Middle or Late Jurassic | Irhazer Group | Niger | A bivalve belonging to the family Unionidae; a new genus for "Unio" lapparenti Mongin (1963). |
| Saxicavella burnsi | Sp. nov | Valid | Hickman | Late Eocene | Keasey Formation | United States | A bivalve belonging to the family Basteroteiidae, a species of Saxicavella. |
| Stutchburia laminata | Sp. nov | Valid | Waterhouse | Permian | Tiverton Formation | Australia | A bivalve belonging to the group Cardiida and the family Kalenteridae. |
| Tamaragonia | Gen. et comb. nov | Valid | Cooper | Early Cretaceous (Berriasian-Aptian), possibly also Late Jurassic | | France  Poland  Russia  Switzerland  United Kingdom | A bivalve belonging to the family Iotrigoniidae. The type species is "Trigonia" abichi Anthula (1899); genus also includes T? hauchecornei (Schmidt, 1905), T. naltschikensis (Mordvilko, 1949), T. scaphae (Agassiz, 1840), T? sequenzai (Trevisan, 1937) and T. transcaspiae (Savel’ev, 1958). |
| Tamesnelloides | Gen. et sp. nov | Valid | Van Damme & Bogan in Van Damme, Bogan & Dierick | Middle or Late Jurassic | Irhazer Group | Niger | An unionid bivalve belonging to the family Tamesnellidae. The type species is Tamesnelloides lithoides. |
| Tamuragonia | Gen. et comb. nov | Valid | Cooper | Cretaceous (?Valanginian-Cenomanian) | | Japan  New Zealand? | A bivalve belonging to the family Pterotrigoniidae. The type species is "Trigonia" ogawai Yehara (1923); genus also includes T. amakusensis (Tashiro & Matsuda, 1983), T. brevicula (Yehara, 1915), T. dilapsa (Yehara, 1923), T. higoensis (Tamura & Tashiro, 1967), T. mashikensis (Tamura & Tashiro 1967), T. mifunensis (Tamura & Tashiro, 1967), T. miyanoharensis (Tashiro & Matsuda, 1983), T. tamurai (Tashiro & Matsuda, 1983), T. tanakai (Tashiro & Matsuda, 1986), T? ultima (Fleming 1987), and T. usuiensis (Tashiro & Matsuda, 1983). |
| Tanzanitrigonia | Gen. et comb. nov | Valid | Cooper | Late Jurassic and Early Cretaceous | | Argentina  Madagascar  Somalia  Tanzania  United States ( Arizona) | A bivalve belonging to the family Rutitrigoniidae. The type species is "Trigonia" schwarzi Müller (1900); genus also includes "Trigonia" agrioensis Weaver (1931), "Trigonia" niongalensis Lange (1914), "Trigonia" nossae Aitken (1961), "Trigonia" nyangensis Aitken (1961), "Trigonia" stephaninii Venzo (1942), "Trigonia" undulatostriata Paulcke (1903) and "Trigonia" weaveri Stoyanow (1949). |
| Tegulaedon | Gen. et comb. nov | Valid | Van Damme & Bogan in Van Damme, Bogan & Dierick | Jurassic | | Egypt  Niger | An unionid bivalve belonging to the family Tegulaedontidae; a new genus for "Unio" humei Newton (1909). |
| Tennessiella | Gen. et comb. nov | Valid | Cooper | Late Cretaceous (Campanian-Maastrichtian) | | United States | A bivalve belonging to the family Pterotrigoniidae. The type species is "Trigonia" thoracica Morton (1834); genus also includes T. castrovillensis (Stephenson, 1941) and T. stantoni (Stephenson, 1941). |
| Thyasira (Thyasira) beui | Sp. nov | Valid | Amano et al. | Early to middle Miocene | Bexhaven Limestone | New Zealand | A thyasirid bivalve, a species of Thyasira. |
| Thyasira (Thyasira) marwicki | Nom. nov | Valid | Amano et al. | Late Miocene | | New Zealand | A thyasirid bivalve, a species of Thyasira; a replacement name for Thyasira (Thyasira) planata Marwick (1926) (preoccupied). |
| Trigonodesma tersa | Sp. nov | Valid | Berezovsky | Late Eocene | Mandrikovka Beds | Ukraine | A bivalve, a species of Trigonodesma. |
| Tuaregunio | Gen. et comb. nov | Valid | Van Damme & Bogan in Van Damme, Bogan & Dierick | Middle or Late Jurassic | Irhazer Group | Niger | A bivalve belonging to the family Unionidae; a new genus for ?"Lampsilis" agadesensis Mongin (1963). |
| Turanigonia | Gen. et comb. nov | Valid | Cooper | Late Cretaceous (Cenomanian) | | | A bivalve belonging to the family Rutitrigoniidae. The type species is "Trigonia" pseudoindica Arkhanguelsky (1916). |
| Turikirella | Gen. et comb. nov | Valid | Cooper | Early Cretaceous (late Barremian - early Aptian) | | Tanzania | A bivalve belonging to the family Rutitrigoniidae. The type species is "Megatrigonia (Rutitrigonia)" turikirae Aitken (1961); genus also includes T. bornhardti (Müller, 1900) and T. janenschi (Lange, 1914). |
| Unionelloides (Unionelloides) bellalensis | Sp. nov | Valid | Van Damme & Bogan in Van Damme, Bogan & Dierick | Middle or Late Jurassic | Irhazer Group | Niger | A bivalve belonging to the family Unionidae, a species of Unionelloides. |
| Venignia | Gen. et sp. et comb. nov | Valid | Berezovsky | Late Eocene | | Germany  Ukraine | An ark clam. The type species is Venignia arcula; genus also contains Venignia radula (Koenen, 1893). |
| Yanceyopsis alleni | Sp. nov | Valid | Waterhouse | Permian | Tiverton Formation | Australia | A bivalve belonging to the family Nuculidae. |
| Yaninella | Gen. et comb. nov | Valid | Cooper | Early Cretaceous (Berriasian) | | Crimean Peninsula | A bivalve belonging to the family Pterotrigoniidae. The type species is "Linotrigonia (Oistotrigonia)" belbekensis Yanin (1979). |
| Yoldia bella | Sp. nov | Valid | Berezovsky | Late Eocene | | Ukraine | A bivalve belonging to the group Nuculida, a species of Yoldia. |
| Zigzagia | Gen. et comb. et sp. nov | Valid | Waterhouse | Permian | | Australia | A bivalve belonging to the superfamily Nuculanoidea and the family Polidevciidae. The type species "Glyptoleda" buarabae Campbell (1951); genus also includes new species Z. stevensi. |