# 2014 in arthropod paleontology

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This list of fossil arthropods described in 2014 is a list of new taxa of trilobites, fossil insects, crustaceans, arachnids and other fossil arthropods of every kind that have been described during the year 2014. The list only includes taxa at the level of genus or species.

## Arachnids
### Newly named taxa

| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes |
| Baalzebub? mesozoicum | Sp. nov | Valid | Penney | Cretaceous (middle Cenomanian to early Santonian) | | France | A spider of uncertain placement. Originally described as a ray spider; Wunderlich & Müller (2020) transferred it to the family Zarqaraneidae. |
| Cheirolepidoptus | Gen. et sp. nov | Valid | Sidorchuk & Lindquist in Sidorchuk et al. | Late Triassic (Carnian) | | Italy | A Tetrapodili mite The type species is C. dolomiticus. |
| Feaella (Tetrafeaella) groehni | Sp. nov | Valid | Henderickx in Henderickx & Boone | Eocene | Baltic amber | Europe | A feaellid pseudoscorpion |
| Hastocularis | Gen. et sp. nov | Valid | Garwood et al. | Carboniferous (late Stephanian) | | France | A Tetrophthalmi Opiliones. The type species is H. argus. |
| Kronocharon | Gen. et sp. nov | Valid | Engel & Grimaldi | Cretaceous (latest Albian or earliest Cenomanian) | Burmese amber | Myanmar | An Amblypygi originally assigned to Neoamblypygi excluded from this group by Garwood et al., 2017). The type species is Kronocharon prendinii. |
| Mayachernes | Gen. et sp. nov | Jr synonym | Riquelme et al. | Miocene | Mexican amber | Mexico | A chernetid pseudoscorpion. The type species is Mayachernes maatiatus. Moved to Byrsochernes maatiatus by Judson (2016) |
| Minyacarus | Gen. et sp. nov | Valid | Sidorchuk & Lindquist in Sidorchuk et al. | Late Triassic (Carnian) | | Italy | A Tetrapodili mite. The type species is M. aderces. |
| Montsecarachne | Gen. et sp. nov | Valid | Selden | Early Cretaceous (c. 129 Ma) | El Montsec | Spain | Originally described as a plectreurid spider, subsequently considered to be a member of the crown group of Synspermiata of uncertain affinities. The type species is M. amicus. |
| ?Opilioacarus groehni | Sp. nov | Valid | Dunlop & Bernardi | Late Cretaceous (Cenomanian) | Burmese amber | Myanmar | An opilioacarid mite. |
| Paracharonopsis | Gen. et sp. nov | Valid | Engel & Grimaldi | Eocene (Ypresian) | Cambay Shale Formation | India | A Paracharontidae Amblypygi. The type species is P. cambayensis. |
| Paratrombium rovniense | Sp. nov | Valid | Konikiewicz & Mąkol | Eocene | Rovno amber | Ukraine | A mite. |
| Pleophrynus hawesi | Sp. nov | Valid | Dunlop et al. | Carboniferous (Pennsylvanian) | Astrasado Formation | United States | An eophrynid trigonotarbid. |
| Pulchellaranea | Gen. et sp. nov | Valid | Poinar | Cenozoic | Dominican amber | Dominican Republic | An orb-weaver spider. The type species is P. pedunculata. |
| Seppo | Gen. et sp. nov | Valid | Selden & Dunlop | Early Jurassic (Toarcian) | Ciechocinek Formation | Germany | A probable palpimanoidean spider. The type species is S. koponeni. |
| Tityus knodeli | Sp. nov | Valid | Lourenço | Miocene | Mexican amber | Mexico | A buthid scorpion. |
| Tuckerella fossilibus | Sp. nov | Valid | Khaustov, Sergeyenko & Perkovsky | Eocene | Rovno amber | Ukraine | A peacock mite. |

## Newly named crustaceans

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes |
| Acanthaxius carinatus | Sp. nov | Valid | Frantescu | Early Cretaceous (Albian) | Paw Paw Formation | United States | A member of Axiidae, a species of Acanthaxius. |
| Acanthochirana liburiaensis | Sp. nov | Valid | Garassino, Audo, Charbonnier & Schweigert in Bravi et al. | Middle Jurassic (Bajocian/Bathonian) | | Italy | A member of Aegeridae, a species of Acanthochirana. |
| Acanthochirana triassica | Sp. nov | Valid | Garassino, Schweigert & Muscio | Late Triassic (Norian) | Dolomia di Forni Formation | Italy | A member of Aegeridae, a species of Acanthochirana. |
| Adamanteryon | Gen. et sp. nov | Valid | Audo et al. | Middle Jurassic | La Voulte-sur-Rhône Lagerstätte | France | A member of Polychelida. The type species is Adamanteryon fourneti. |
| Alavatanais margulisae | Sp. nov | Valid | Sánchez-García, Peñalver & Delclòs in Sánchez-García et al. | Early Cretaceous | | Spain | A paratanaoid tanaid, a species of Alavatanais. |
| Alessandranina | Gen. et comb. nov | Valid | Karasawa et al. | Late Cretaceous (Cenomanian) | | United Kingdom | A palaeocorystid crab. The type species is "Notopocorystes" (Cretacoranina) ornatus Wright and Collins (1972). |
| Ammopylocheles petersi | Sp. nov | Valid | Fraaije | Late Jurassic (late Kimmeridgian) | | Germany | A hermit crab, a species of Ammopylocheles. |
| Anisaeger | Gen. et 2 sp. nov | Valid | Schweitzer et al. | Middle Triassic (Anisian) | | China | A member of Aegeridae. The type species is Anisaeger brevirostrus; genus also contains Anisaeger spiniferus. |
| Annuntidiogenes jurassicus | Sp. nov | Valid | Fraaije | Late Jurassic (late Kimmeridgian) | | Germany | A hermit crab, a species of Annuntidiogenes. |
| Antrimpos colettoi | Sp. nov | Valid | Garassino, Schweigert & Muscio | Late Triassic (Norian) | Dolomia di Forni Formation | Italy | A member of Penaeidae. Originally described as a species of Antrimpos, but subsequently transferred to the genus Ladinicaris. |
| Araripenaeus | Gen. et sp. nov | Valid | Pinheiro, Saraiva & Santana | Early Cretaceous (Albian) | Romualdo Formation | Brazil | A member of Penaeoidea of uncertain phylogenetic placement. The type species is Araripenaeus timidus. |
| Arcania kobayashinobuakii | Sp. nov | Valid | Karasawa | Middle Pleistocene | Toyohashi Formation | Japan | A member of Leucosiidae, a species of Arcania. |
| Archaeoniscus italiensis | Sp. nov | Valid | Jones, Feldmann & Garassino | Jurassic | | Italy | An isopod, a species of Archaeoniscus. |
| Ariecornibus | Gen. et sp. nov | Valid | Franţescu | Early Cretaceous (late Albian) | | United States | A crab. The type species is Ariecornibus schweitzerae. |
| Axiopsis pawpawensis | Sp. nov | Valid | Frantescu | Early Cretaceous (Albian) | Paw Paw Formation | United States | A member of Axiidae, a species of Axiopsis. |
| Axiopsis sampsonumae | Sp. nov | Valid | Frantescu | Early Cretaceous (Albian) | Paw Paw Formation | United States | A member of Axiidae, a species of Axiopsis. |
| Axiopsis spinifera | Sp. nov | Valid | Frantescu | Early Cretaceous (Albian) | Paw Paw Formation | United States | A member of Axiidae, a species of Axiopsis. |
| Bellcarcinus | Gen. et sp. nov | Valid | Luque | Early Cretaceous (late Aptian) | Paja Formation | Colombia | A crab belonging to the group Raninoidia, possibly a member of the family Orithopsidae. The type species is Bellcarcinus aptiensis. |
| Belos | Gen. et sp. nov | Valid | Franţescu | Early Cretaceous (late Albian) | | United States | A crab. The type species is Belos trispinae. |
| Bolbozoe beccata | Sp. nov | Valid | Perrier et al. | Early Silurian | | Australia | A myodocope ostracod, a species of Bolbozoe. |
| Branchiocarcinus pacificus | Sp. nov | Valid | Nyborg, Ossó & Vega | Late Cretaceous (Maastrichtian) | Moreno Formation | United States | A portunoid crab. Originally described as a member of the family Icriocarcinidae and a species of Branchiocarcinus; Kornecki, Feldmann & Schweitzer (2017) considered the family Icriocarcinidae to be a junior synonym of the family Lithophylacidae and transferred B. pacificus to the genus Lithophylax. |
| Brazilestheria | Gen. et comb. nov | Valid | Chen & Shen | Early Cretaceous | | Brazil | A clam shrimp belonging to the family Sinoestheriidae. Genus includes "Asmussia" souzae Guerin-Franiatte & Taquet (1993). |
| Canalarta | Gen. et sp. nov | Valid | Perrier et al. | Early Silurian | | Australia | A myodocope ostracod. The type species is Canalarta papata. |
| Candonopsis alagoensis | Sp. nov | Valid | Tomé, Lima Filho & Neumann | Early Cretaceous | Araripe basin | Brazil | An ostracod. |
| Cantabroxanthus | Gen. et sp. nov | Valid | Ossó & Díaz Isa | Late Cretaceous (middle Campanian) | | Spain | A feldmanniid crab, a relative of etyiids. The type species is Cantabroxanthus loredoensis. |
| Casertanus | Gen. et sp. nov | Valid | Garassino, Audo, Charbonnier & Schweigert in Bravi et al. | Middle Jurassic (Bajocian/Bathonian) | | Italy | A member of Sergestidae. The type species is Casertanus sabellicus. |
| Ceratobairdia crassispinosa | Sp. nov | Valid | Monostori & Tóth | Triassic | | Hungary | An ostracod, a species of Ceratobairdia. |
| Claudioranina | Gen. et comb. nov | Valid | Karasawa et al. | Eocene (Lutetian-Bartonian) | | Italy | A raninid crab. The type species is "Cyrtorhina" oblonga Beschin, Busulini, De Angeli & Tessier (1988). |
| Clinocypris epacrus | Sp. nov | Valid | Ayress & Whatley | Early Cretaceous | | South Atlantic Ocean (North Falkland Basin) | A non-marine ostracod, a species of Clinocypris. |
| Colombicarcinus | Gen. et sp. nov | Valid | Karasawa et al. | Early Cretaceous (Aptian) | | Colombia | A necrocarcinid crab. The type species is Colombicarcinus laevis. |
| Concinnalepas | Gen. et comb. nov | Valid | Gale | Late Jurassic | | United Kingdom | A zeugmatolepadid barnacle. A new genus for "Pollicipes" concinnus Morris (1845). |
| Cophinia grekoffi | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Turonian) | Potiguar Basin | Brazil | A cytherideid ostracod, a species of Cophinia. |
| Cophinia ovalis | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Santonian–Campanian) | Potiguar Basin | Brazil | A cytherideid ostracod, a species of Cophinia. |
| Corallomursia | Gen. et sp. nov | Valid | De Angeli & Ceccon | Early Eocene | | Italy | A crab belonging to the family Calappidae. Genus includes new species C. eocaena. |
| Ctenocheles fritschi | Sp. nov | Valid | Hýžný, Kočová Veselská & Dvořák | Late Cretaceous (Coniacian) | Březno Formation | Czech Republic | A ctenochelid axiidean, a species of Ctenocheles. |
| Cycleryon romani | Sp. nov | Valid | Audo et al. | Middle Jurassic | La Voulte-sur-Rhône Lagerstätte | France | A member of Polychelida, a species of Cycleryon. |
| Cymothoidana | Gen. et sp. nov | Valid | Jarzembowski et al. | Early Cretaceous | Wealden Supergroup | United Kingdom | A cymothoidan isopod. The type species is Cymothoidana websteri. |
| Cypria poietes | Sp. nov | Valid | Ayress & Whatley | Early Cretaceous | | South Atlantic Ocean (North Falkland Basin) | A non-marine ostracod, a species of Cypria. |
| Cytheropteron paramassoni | Sp. nov | Valid | Yasuhara & Okahashi | Late Quaternary | | North Atlantic Ocean (Rockall Plateau) | A cytherurid podocopid ostracod, a species of Cytheropteron. |
| Damonella grandiensis | Sp. nov | Valid | Tomé, Lima Filho & Neumann | Early Cretaceous | Araripe basin | Brazil | An ostracod. |
| Dawsonius tigris | Sp. nov | Valid | Frantescu | Early Cretaceous (Albian) | Paw Paw Formation | United States | A member of Axiidea belonging to the family Ctenochelidae, a species of Dawsonius. |
| Devonostenopus | Gen. et sp. nov | Valid | Jones et al. | Devonian | Huntley Mountain Formation | United States | A member of Stenopodidea. The type species is Devonostenopus pennsylvaniensis. |
| Dicerobairdia latispinosa | Sp. nov | Valid | Monostori & Tóth | Triassic | | Hungary | An ostracod, a species of Dicerobairdia. |
| Diogenicheles | gen et sp nov | Valid | Fraaije et al. | Oxfordian | | Poland | A parapylochelid hermit crab. The type species is Diogenicheles theodorae. |
| Distaeger | Gen. et sp. nov | Valid | Schweitzer et al. | Middle Triassic (Anisian) | | China | A member of Aegeridae. The type species is Distaeger prodigiosus. |
| Distefania(?) tangishirazensis | Sp. nov | Valid | Jagt et al. | Early Cretaceous (Albian) | Kazhdumi Formation | Iran | A member of Dromioidea, possibly a species of Distefania. |
| Distefania(?) vanrijsselti | Sp. nov | Valid | Jagt, Fraaije & van Bakel | Late Cretaceous (late Maastrichtian) | Maastricht Formation | Netherlands | A member of Dromioidea, possibly a species of Distefania. |
| Dromia evae | Sp. nov | Valid | Collins | Miocene | | Austria | A member of Dromiidae, a species of Dromia. |
| Dromiopsis paleogenicus | Sp. nov | Valid | De Angeli & Ceccon | Early Eocene | | Italy | A crab belonging to the family Dynomenidae. |
| Dundgobiestheria | Gen. et sp. nov | Valid | Li in Li et al. | Probably Middle Jurassic | Eedemt Formation | Mongolia | A clam shrimp. The type species is Dundgobiestheria mandalgobiensis. |
| Electrotanais | Gen. et sp. nov | Valid | Sánchez-García, Peñalver & Delclòs in Sánchez-García et al. | Early Cretaceous | | Spain | A paratanaoid tanaid. The type species is Electrotanais monolithus. |
| Entomozoe bispinosa | Sp. nov | Valid | Wang & Wu | Early Silurian | Shimenkan Formation | China | An ostracod, a species of Entomozoe. |
| Entomozoe suboblonga | Sp. nov | Valid | Wang & Wu | Early Silurian | Shimenkan Formation | China | An ostracod, a species of Entomozoe. |
| Entomozoe wukeensis | Sp. nov | Valid | Wang & Wu | Early Silurian | Shimenkan Formation | China | An ostracod, a species of Entomozoe. |
| Eogordonella | Gen. et sp. nov | Valid | Garassino et al. | Eocene | | Iran | A solenocerid penaeoid. The type species is Eogordonella iranianiensis. |
| Eomaldivia? friebei | Sp. nov | Valid | Collins | Miocene | | Austria | A member of Trapeziidae, possibly a species of Eomaldivia. |
| Eonatatolana | Gen. et sp. nov | Valid | Etter | Middle Jurassic | | Germany | A cirolanid isopod. The type species is Eonatatolana geisingensis. |
| Eopabdehus | Gen. et sp. nov | Valid | Garassino et al. | Eocene | | Iran | A penaeid. The type species is Eopabdehus babaheydariensis. |
| Eosestheria lushangfenensis | Sp. nov | Valid | Liao, Shen & Huang | Early Cretaceous | Lushangfen Formation | China | A clam shrimp, a species of Eosestheria. |
| Epibrachylepas | Gen. et sp. et comb. nov | Valid | Gale in Gale & Sørensen | Late Cretaceous (Campanian and Maastrichtian) | | Netherlands  Sweden | A basal balanomorph barnacle. The type species is Epibrachylepas newmani; genus also includes Epibrachylepas smeetsi (Bosquet, 1857). |
| Eryma osciensis | Sp. nov | Valid | Garassino, Audo, Charbonnier & Schweigert in Bravi et al. | Middle Jurassic (Bajocian/Bathonian) | | Italy | A member of the family Erymidae. |
| Etcheslepas | Gen. et sp. et comb. nov | Valid | Gale | Late Jurassic | | United Kingdom | A member of Pollicipedidae. Genus contains the new species Etcheslepas durotrigensis, as well as "Zeugmatolepas" fragilis Withers (1928). |
| Etisus evamuellerae | Sp. nov | Valid | Hyžný, van Bakel & Guinot | Middle Miocene | | Austria  Hungary  Spain? | A member of Xanthidae, a species of Etisus. |
| Eucytherura myrsinae | Sp. nov | Valid | Uffenorde in Uffenorde & Radtke | Oligocene | | Germany | A cytherurid podocopid ostracod. |
| Eucytherura zehali | Nom. nov | Valid | Yasuhara & Okahashi | Late Quaternary | | North Atlantic Ocean (Carolina Slope) | A cytherurid podocopid ostracod; a replacement name for Eucytherura hazeli Yasuhara, Okahashi & Cronin (2009). |
| Eukloedenella adcapitisdolorella | Sp. nov | Valid | Forel | Early Triassic | Kokarkuyu Formation | Turkey | An ostracod, a species of Eukloedenella. |
| Eurotanais | Gen. et sp. nov | Valid | Sánchez-García, Peñalver & Delclòs in Sánchez-García et al. | Early Cretaceous | | Spain | A paratanaoid tanaid. The type species is Eurotanais terminator. |
| Falklandicypris | Gen. et 2 sp. nov | Valid | Ayress & Whatley | Early Cretaceous | | South Atlantic Ocean (North Falkland Basin) | A non-marine ostracod. The type species is Falklandicypris petrasaltata; genus also contains Falklandicypris desiderata. |
| Faxelepas | Gen. et comb. nov | Valid | Gale | Late Cretaceous (Maastrichtian) to late Miocene | | Denmark  Italy  Netherlands  Spain  Sweden | A barnacle related to verrucomorphs. A new genus for "Pycnolepas" bruennichi Withers (1914); genus also includes "Pycnolepas" paronai De Alessandri (1895). |
| Fossocytheridea potiguarensis | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Santonian–Campanian) | Potiguar Basin | Brazil | A cytherideid ostracod, a species of Fossocytheridea. |
| Fossocytheridea tiberti | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Turonian) | Potiguar Basin | Brazil | A cytherideid ostracod, a species of Fossocytheridea. |
| Gangamoncythere | Gen. et sp. nov | Valid | Ayress & Whatley | Early Cretaceous | | South Atlantic Ocean (North Falkland Basin) | A non-marine ostracod. The type species is Gangamoncythere colini. |
| Glabropilumnus nitidus | Sp. nov | Valid | Collins | Miocene | | Austria | A member of Pilumnidae, a species of Glabropilumnus. |
| Globotalicypridea mirabilis | Sp. nov | Valid | Silye, Colin & Codrea | Late Cretaceous (Maastrichtian) | | Romania | A talicyprideine cypridid ostracod, a species of Globotalicypridea. |
| Gracilimanus | Gen. et sp. nov | Valid | Feldmann & Schweitzer in Guyer, Schweitzer & Feldmann | Middle Jurassic (Bajocian/Bathonian) | Gypsum　Springs Formation | United States | A member of Astacidea, possibly a member of the family Stenochiridae. The type species is Gracilimanus obscurus. |
| Giulianolyreidus | Gen. et comb. nov | Valid | Karasawa et al. | Paleocene (Thanetian) | | United States | A lyreidid crab. The type species is "Symethis" johnsoni Rathbun (1935); genus also contains "Symnista" bidentata Rathbun (1935). |
| Gypsonicus | Gen. et sp. nov | Valid | Schweitzer & Feldmann in Guyer, Schweitzer & Feldmann | Middle Jurassic (Bajocian/Bathonian) | Gypsum　Springs Formation | United States | A member of Astacidea belonging to the family Stenochiridae. The type species is Gypsonicus wyomingensis. |
| Harpactocarcinus fedrigoi | Sp. nov | Valid | Beschin, De Angeli & Zorzin | Eocene | | Italy | A zanthopsid carpilioid crab, a species of Harpactocarcinus. |
| Haughtonileberis dinglei | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Turonian to Santonian) | | Brazil  Nigeria | A trachyleberidid ostracod, a species of Haughtonileberis. |
| Hemicytherura viviersae | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Turonian) | Potiguar Basin | Brazil | A cytherurid ostracod, a species of Hemicytherura. |
| Hepatus pauli | Sp. nov | Valid | Collins, Garvie & Mellish | Pleistocene | Beaumont Formation | United States | A member of Aethridae, a species of Hepatus. |
| Hourcqia woodi | Sp. nov | Valid | Ayress & Whatley | Early Cretaceous | | South Atlantic Ocean (North Falkland Basin) | A non-marine ostracod, a species of Hourcqia. |
| Housacheles ovalis | Sp. nov | Valid | Fraaije | Late Jurassic (late Kimmeridgian) | | Germany | A hermit crab, a species of Housacheles. |
| Hyas chippubetsuensis | Sp. nov | Valid | Kato, Nakashima & Yanagisawa | Early Pliocene | Chippubetsu Formation | Japan | A member of Oregoniidae, a species of Hyas. |
| Hyas tentokujiensis | Sp. nov | Valid | Kato, Nakashima & Yanagisawa | Early Pliocene | Tentokuji Formation | Japan | A member of Oregoniidae, a species of Hyas. |
| Icenilepas | Gen. et sp. nov | Valid | Gale | Late Cretaceous (Santonian) | | United Kingdom | A zeugmatolepadid barnacle. The type species is Icenilepas collinsi. |
| Ilhasina? leiodermatus | Sp. nov | Valid | Ayress & Whatley | Early Cretaceous | | South Atlantic Ocean (North Falkland Basin) | A non-marine ostracod, possibly a species of Ilhasina. |
| Ilyocypris bisulcata | Sp. nov | Valid | Qu et al. | Early Paleocene | Mingshui Formation | China | An ilyocypridid cypridoid ostracod, a species of Ilyocypris. |
| Italianira | Gen. et comb. nov | Valid | Karasawa et al. | Eocene (Ypresian) | | Italy | A raninid crab. The type species is "Ranilia" punctulata Beschin, Busulini, De Angeli & Tessier (1988). |
| Jandairella | Gen. et sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Turonian) | Potiguar Basin | Brazil | A trachyleberidid ostracod. The type species is Jandairella obesa. |
| Kegelina | Gen. et comb. nov | Valid | de Queiroz Neto, Sames & Colin | Early Cretaceous | | Brazil  Gabon  United States | A cypridoid ostracod. A new genus for "Cypridea" anomala Peck (1941), "Cypridea" armata Krömmelbein (1962), "Cypridea" bisculpturata Wicher (1959), "Cypridea" depressa Moura (1972) and "Cypridea" kegeli Wicher (1959). |
| Kotoracythere paiki | Sp. nov | Valid | Lee | Pliocene-Pleistocene | Seogwipo Formation | South Korea | An ostracod, a species of Kotoracythere. |
| Krausella danukalovae | Sp. nov | Valid | Melnikova & Danukalova | Ordovician | | Russia | An ostracod, a species of Krausella. |
| Kuzminaella arabieni | Sp. nov | Valid | Groos-Uffenorde in Groos-Uffenorde & Rabien | Devonian | | Germany | An ostracod. |
| Lepidophthalmus paratethyensis | Sp. nov | Valid | Gašparič & Hyžný | Early Miocene (late Burdigalian) | | Slovenia | A member of Callianassidae, a species of Lepidophthalmus. |
| Longiscula kazarkina | Sp. nov | Valid | Melnikova & Danukalova | Ordovician | | Russia | An ostracod, a species of Longiscula. |
| Looneyellopsis tuberculatus | Sp. nov | Valid | Ayress & Whatley | Early Cretaceous | | South Atlantic Ocean (North Falkland Basin) | A non-marine ostracod, a species of Looneyellopsis. |
| Loxocorniculum? narendrai | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Turonian) | Potiguar Basin | Brazil | A loxoconchid ostracod, possibly a species of Loxocorniculum. |
| Luprisca | Gen. et sp. nov | Valid | Siveter et al. | Ordovician (Katian) | Lorraine Group | United States | A myodocope ostracod. The type species is Luprisca incuba. |
| Martillepas | Gen. et comb. nov | Valid | Gale | Late Jurassic | | United Kingdom | A zeugmatolepadid barnacle. A new genus for "Calantica" ovalis Withers (1928), "Zeugmatolepas" costata Withers (1928) and "Zeugmatolepas" hollisi Withers (1928). |
| Masticacheles | Gen et 2 sp nov | Valid | Fraaije et al. | Oxfordian to Kimmeridgian | | Germany  Poland | A parapylochelid hermit crab. The type species is Masticacheles longirostris from Oxfordian of Poland; subsequently a second species Masticacheles minimus from late Kimmeridgian of Germany was named by Fraaije (2014). |
| Mesoparapylocheles jaegeri | Sp. nov | Valid | Fraaije | Late Jurassic (late Kimmeridgian) | | Germany | A hermit crab, a species of Mesoparapylocheles. |
| Mesoparapylocheles schweigerti | Sp. nov | Valid | Fraaije | Late Jurassic (late Kimmeridgian) | | Germany | A hermit crab, a species of Mesoparapylocheles. |
| Monoceratina hussonae | Sp. nov | Valid | Forel | Early Triassic | Kokarkuyu Formation | Turkey | An ostracod, a species of Monoceratina. |
| Montemagrellus | Gen. et sp. nov | Valid | De Angeli & Ceccon | Early Eocene | | Italy | A crab belonging to the family Crossotonotidae. Genus includes new species M. denticulatus. |
| Muelleristhes | Gen. et comb. nov | Valid | Garassino, De Angeli & Pasini | Late Cretaceous (Cenomanian-Turonian) | | Morocco | A porcelain crab; a new genus for "Paragalathea" africana Garassino, De Angeli & Pasini (2008). |
| Munidopsis palmuelleri | Sp. nov | Valid | Hyžný et al. | Middle Miocene | Slovenske Gorice Formation | Slovenia | A munidopsid galatheoid, a species of Munidopsis. |
| Musacchiocythere | Gen. et comb. nov | Valid | Ayress & Whatley | Early Cretaceous | | South Atlantic Ocean (North Falkland Basin) | A non-marine ostracod. The type species is Musacchiocythere sarunata (Musacchio, 1978). |
| Neopilumnoplax pohorjensis | Sp. nov | Valid | Gašparič & Hyžný | Early Miocene (late Burdigalian) | | Slovenia | A member of Mathildellidae, a species of Neopilumnoplax. |
| Nothocarapacestheria | Gen. et sp. nov | Valid | Rohn, Dutra & Cabral | Probably Jurassic | Caturrita Formation | Brazil | A clam shrimp belonging to the family Eosestheriidae. The type species is Nothocarapacestheria soturnensis. |
| Occultocaris | Gen. et sp. nov | Valid | Winkler | Late Jurassic (early Tithonian) | Solnhofen Plattenkalk | Germany | A member of Caridea, possibly a bresilioid. The type species is Occultocaris frattigianii. |
| Ovocytheridea anterocompressa | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Santonian–Campanian) | Potiguar Basin | Brazil | A cytherideid ostracod, a species of Ovocytheridea. |
| Ovocytheridea posteroprojecta | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Turonian) | Potiguar Basin | Brazil | A cytherideid ostracod, a species of Ovocytheridea. |
| Ovocytheridea reymenti | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous | | Brazil  Nigeria | A cytherideid ostracod, a species of Ovocytheridea. |
| Ovocytheridea triangularis | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Santonian–Campanian) | Potiguar Basin | Brazil | A cytherideid ostracod, a species of Ovocytheridea. |
| Pagurus retznensis | Sp. nov | Valid | Collins | Miocene | | Austria | A hermit crab, a species of Pagurus. |
| Pagurus texensis | Sp. nov | Valid | Franţescu | Early Cretaceous (late Albian) | | United States | A hermit crab, a species of Pagurus. |
| Palaega furcillanatis | Sp. nov | Valid | Jones, Feldmann & Garassino | Jurassic | | Italy | An isopod, a species of Palaega. |
| Palaeogammarus debroyeri | Sp. nov | Valid | Jażdżewski, Grabowski & Kupryjanowicz | Eocene | | Probably Russia (Kaliningrad Oblast) | A member of Amphipoda found in Baltic amber, a species of Palaeogammarus. |
| Palinurellus bericus | Sp. nov | Valid | De Angeli & Garassino | Eocene (Priabonian) | | Italy | A furry lobster, a species of Palinurellus. |
| Palladiocarcinus | Gen. et sp. nov | Valid | De Angeli & Ceccon | Early Eocene | | Italy | A crab belonging to the family Pilumnidae. Genus includes new species P. brevidentatus. |
| Palmunidopsis | Gen. et sp. nov | Valid | Fraaije | Miocene (Tortonian) | Pakhna Formation | Cyprus | A munidopsid galatheoid. The type species is Palmunidopsis muelleri. |
| Parabrachylepas | Gen. et comb. nov | Valid | Gale in Gale & Sørensen | Late Cretaceous (Campanian) | | Sweden | A basal balanomorph barnacle. The type species is Parabrachylepas ifoensis (Withers, 1935). |
| Paracypris ? krivipotokensis | Sp. nov | Valid | Forel in Sudar et al. | Early Triassic (Olenekian) | Obnica Formation | Serbia | A cypridoid ostracod belonging to the family Paracyprididae, possibly a species of Paracypris. |
| Paracypris vietnamensis | Sp nov | Valid | Tanaka & Komatsu in Shigeta et al. | Early Triassic (Olenekian) | Bac Thuy Formation | Vietnam | An ostracod, a species of Paracypris. |
| Paraplesiocypridea | Gen. et sp. nov | Valid | Ayress & Whatley | Early Cretaceous | | South Atlantic Ocean (North Falkland Basin) | A non-marine ostracod. The type species is Paraplesiocypridea alloios. |
| Parapylochelitergites deductius | Sp. nov | Valid | Fraaije | Late Jurassic (late Kimmeridgian) | | Germany | A hermit crab, a species of Parapylochelitergites. |
| Parapylochelitergites prepustulosus | Sp. nov | Valid | Fraaije | Late Jurassic (late Kimmeridgian) | | Germany | A hermit crab, a species of Parapylochelitergites. |
| Paraxiopsis erugatus | Sp. nov | Valid | Frantescu | Early Cretaceous (Albian) | Paw Paw Formation | United States | A member of Axiidae, a species of Paraxiopsis. |
| Parsacus | Gen. et sp. et comb. nov | Valid | Garassino et al. | Eocene | | Iran  Italy | A slipper lobster. Genus contains new species Parsacus eocenicus, as well as "Parribacus" cristatus Förster (1984). |
| Pauline nivisis | Sp. nov | Valid | Perrier et al. | Silurian (late Telychian) | Pentamerus Bjerge Formation | Greenland | A cylindroleberidid myodocope ostracod, a species of Pauline. |
| Paulinecaris | Gen. et sp. nov | Valid | Waloszek et al. | Cambrian | Orsten | Sweden | An entomostracan of uncertain phylogenetic placement. The type species is Paulinecaris siveterae. |
| Pedupycnolepas | Gen. et comb. nov | Valid | Gale | Early Cretaceous (probably early Aptian) | | Antarctica (Alexander Island) | A barnacle; a new genus for "Pycnolepas" articulata Collins (1980). |
| Periacanthus tetracornis | Sp. nov | Valid | Ferratges et al. | Eocene | Roda Formation | Spain | A crab. Originally assigned to the family Epialtidae and to the genus Periacanthus; Ferratges (2024) assigned it to the subfamily Actinotocarcininae, tentatively placed in the family Majidae, and made it the type species of the separate genus Eoactinotocarcinus. |
| Perissocytheridea caudata | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Turonian) | Potiguar Basin | Brazil | A cytherideid ostracod, a species of Perissocytheridea. |
| Perissocytheridea jandairensis | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Santonian–Campanian) | Potiguar Basin | Brazil | A cytherideid ostracod, a species of Perissocytheridea. |
| Perissocytheridea mossoroensis | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Turonian) | Potiguar Basin | Brazil | A cytherideid ostracod, a species of Perissocytheridea. |
| Petrochirus sanctilazzari | Sp. nov | Valid | Baldanza et al. | Early Pleistocene | | Italy | A diogenid hermit crab, a species of Petrochirus. |
| Petrolisthes albianicus | Sp. nov | Valid | Franţescu | Early Cretaceous (late Albian) | | United States | Originally classified as a porcelain crab belonging to the genus Petrolisthes. Robins & Klompmaker (2019) transferred it to the genus Hispanigalathea belonging to the galatheoid family Catillogalatheidae. |
| Pilgrimcheles | gen et 3 sp nov | Valid | Fraaije et al. | Oxfordian to Kimmeridgian | | Germany  Poland | A parapylochelid hermit crab. The type species is Pilgrimcheles karolinae from Oxfordian of Poland; subsequently additional two species, Pilgrimcheles kersteni and Pilgrimcheles vonmeyeri, were described from Kimmeridgian of Germany by Fraaije (2014). |
| Pisidia? subnodosa | Sp. nov | Valid | Collins | Miocene | | Austria | A porcelain crab, possibly a species of Pisidia. |
| Planobranchia palmuelleri | Sp. nov | Valid | Artal, van Bakel & Onetti | Eocene (Lutetian) | Coll de Malla Formation | Spain | A member of Inachidae, a species of Planobranchia. |
| Plioaxius texensis | Sp. nov | Valid | Frantescu | Early Cretaceous (Albian) | Paw Paw Formation | United States | A member of Axiidae, a species of Plioaxius. |
| Portunus muelleri | Sp. nov | Valid | Collins | Miocene | | Austria | A member of Portunidae, a species of Portunus. |
| Potiguarella | Gen. et 2 sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Turonian) | | Brazil  Gabon | A trachyleberidid ostracod. The type species is Potiguarella grosdidieri; genus also contains Potiguarella coimbrai. |
| Priscoverruca | Gen. et comb. et sp. nov | Valid | Gale | Late Cretaceous | | Belgium  Germany  Netherlands  United Kingdom | A barnacle. The type species is "Verruca" prisca Bosquet (1854); genus also includes new species P. elongata. |
| Procytherura ballentae | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Turonian) | Potiguar Basin | Brazil | A cytherurid ostracod, a species of Procytherura. |
| Protocosta babinoti | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Santonian–Campanian) | Potiguar Basin | Brazil | A trachyleberidid ostracod, a species of Protocosta. |
| Proverruca dentifer | Sp. nov | Valid | Gale | Late Cretaceous (Campanian) | | Belgium  Sweden | A barnacle. |
| Pylochelitergites exspectatus | Sp. nov | Valid | Fraaije et al. | Late Jurassic (Oxfordian) | | Poland | A member of Pylochelidae, a species of Pylochelitergites. |
| Pyreneplax | Gen. et sp. et comb. nov | Valid | Ossó, Domínguez & Artal | Eocene | | Italy  Spain  United States | A member of Vultocinidae. The type species is P. basaensis; genus also includes P. ranosa (Beschin, Busulini, De Angeli & Tessier, 2002), P. sandersi (Blow & Manning, 1997) and P. sommarugai (Beschin, Busulini & Tessier, 2009). |
| Quadratoplanus | Gen. et sp. nov | Valid | Franţescu | Early Cretaceous (late Albian) | | United States | A crab. The type species is Quadratoplanus primitivus. |
| Retropluma slovenica | Sp. nov | Valid | Gašparič & Hyžný | Early Miocene (late Burdigalian) | | Slovenia | A member of Retroplumidae, a species of Retropluma. |
| Reviya sylvieae | Sp. nov | Valid | Forel | Early Triassic | Kokarkuyu Formation | Turkey | An ostracod, a species of Reviya. |
| Schramidontus | Gen. et sp. nov | Valid | Gueriau, Charbonnier & Clément | Late Devonian (Famennian) | | Belgium | A member of Eucarida related to Angustidontus. The type species is Schramidontus labasensis. |
| Scututergites | Gen. et sp. nov | Valid | Fraaije | Late Jurassic (late Kimmeridgian) | | Germany | A hermit crab. The type species is Scututergites anteroindentatus. |
| Semicytherura musacchioi | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Santonian–Campanian) | Potiguar Basin | Brazil | A cytherurid ostracod, a species of Semicytherura. |
| Sphaeroma montefallanoense | Sp. nov | Valid | Jones, Feldmann & Garassino | Jurassic | | Italy | An isopod, a species of Sphaeroma. |
| Stagmacaris subcircularis | Sp. nov | Valid | Fraaije | Late Jurassic (late Kimmeridgian) | | Germany | A hermit crab, a species of Stagmacaris. |
| Stevea martini | Sp. nov | Valid | Feldmann, Schweitzer & Portell | Early Paleocene | Clayton Formation | United States | A member of Hexapodidae, a species of Stevea. |
| Synurella aliciae | Sp. nov | Valid | Jażdżewski, Grabowski & Kupryjanowicz | Eocene | | Probably Russia (Kaliningrad Oblast) | A member of Amphipoda found in Baltic amber, a species of Synurella. |
| Tamnacythere | Gen. et sp. nov | Valid | Lee | Pliocene-Pleistocene | Seogwipo Formation | South Korea | An ostracod. The type species is Tamnacythere seogwipoensis. |
| Tanycythere | Gen. et 6 sp. nov | Valid | Cabral et al. | Early Jurassic to Early Cretaceous (Hettangian to Barremian?) | | Western and central Europe | An ostracod. Genus contains six species: T. caudata, T. praecaudata (with two subspecies: T. praecaudata praecaudata and T. praecaudata parallela), T. duartei, T. posteroelongata, T. wattonensis and T. procera. |
| Tealliocaris walloniensis | Sp. nov | Valid | Gueriau, Charbonnier & Clément | Late Devonian (Famennian) | | Belgium | A pygocephalomorph crustacean, a species of Tealliocaris. |
| Telamonocarcinus antiquus | Sp. nov | Valid | Luque | Early Cretaceous (early Albian) | | Colombia | A crab, a species of Telamonocarcinus. |
| Tesseropora canariana | Sp. nov | Valid | Hornung | Pliocene (Zanclean) | | Spain ( Canary Islands) | A tetraclitid balanomorph barnacle, a species of Tesseropora. |
| Tethyseryon | Gen. et sp. nov | Valid | Garassino, Audo, Charbonnier & Schweigert in Bravi et al. | Middle Jurassic (Bajocian/Bathonian) | | Italy | A member of Eryonidae. The type species is Tethyseryon campanicus. |
| Theriosynoecum ballentae | Sp. nov | Valid | Ayress & Whatley | Early Cretaceous | | South Atlantic Ocean (North Falkland Basin) | A non-marine ostracod, a species of Theriosynoecum. |
| Theriosynoecum petasmathylacus | Sp. nov | Valid | Ayress & Whatley | Early Cretaceous | | South Atlantic Ocean (North Falkland Basin) | A non-marine ostracod, a species of Theriosynoecum. |
| Tianzhuestheria jianchangensis | Sp. nov | Valid | Wang | Middle–Late Jurassic | | China | A clam shrimp. |
| Timiriasevia fluitans | Sp. nov | Valid | Ayress & Whatley | Early Cretaceous | | South Atlantic Ocean (North Falkland Basin) | A non-marine ostracod, a species of Timiriasevia. |
| Triebelina anterotuberculata | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Santonian–Campanian) | Potiguar Basin | Brazil | A bairdiid ostracod, a species of Triebelina. |
| Triebelina obliquocostata | Sp. nov | Valid | Piovesan, Carbal & Colin in Piovesan et al. | Late Cretaceous (Santonian–Campanian) | Potiguar Basin | Brazil | A bairdiid ostracod, a species of Triebelina. |
| Triglypta eedemtensis | Sp. nov | Valid | Li in Li et al. | Probably Middle Jurassic | Eedemt Formation | Mongolia | A clam shrimp, a species of Triglypta. |
| Triglypta yabraiensis | Sp. nov | Valid | Wang | | | China | A clam shrimp. |
| Ululapagurus | Gen. et sp. nov | Valid | Fraaije | Late Jurassic (late Kimmeridgian) | | Germany | A hermit crab. The type species is Ululapagurus vanbakeli. |
| Unzhiella navis | Sp. nov | Valid | Voronkova | Late Permian | | Russia | A volganellid ostracod, a species of Unzhiella. |
| Vecticypris samesi | Sp. nov | Valid | Ayress & Whatley | Early Cretaceous | | South Atlantic Ocean (North Falkland Basin) | A non-marine ostracod, a species of Vecticypris. |
| Verruca jagti | Sp. nov | Valid | Gale | Late Cretaceous (Maastrichtian) | Maastricht Formation | Netherlands | A barnacle, a species of Verruca. |
| Volganella extensis | Sp. nov | Valid | Voronkova | Late Permian | | Russia | A volganellid ostracod, a species of Volganella. |
| Volganella golubevi | Sp. nov | Valid | Voronkova | Late Permian | | Russia | A volganellid ostracod, a species of Volganella. |
| Volganella vjaznikovensis | Sp. nov | Valid | Voronkova | Late Permian | | Russia | A volganellid ostracod, a species of Volganella. |
| Voulteryon | Gen. et sp. nov | Valid | Audo et al. | Middle Jurassic | La Voulte-sur-Rhône Lagerstätte | France | A member of Polychelida. The type species is Voulteryon parvulus. |
| Wanestheria | Gen. et comb. nov | Valid | Chen & Shen | Late Cretaceous | | China | A clam shrimp belonging to the family Sinoestheriidae. Genus includes "Sinoestheria" anhuiensis Chen & Shen (1982), "Sinoestheria" producta Chen & Shen (1982) and "Sinoestheria" semiorbita Chen & Shen (1982). |
| Youngiverruca | Gen. et sp. nov | Valid | Gale | Late Cretaceous (Maastrichtian) | | Germany | A barnacle. The type species is Youngiverruca ruegenensis. |
| Zovocarcinus | Gen. et sp. nov | Valid | De Angeli & Garassino | Eocene (late Ypresian) | | Italy | A member of Panopeidae. The type species is Zovocarcinus muelleri. |

## Trilobites

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes |
| Airophrys | Gen. et sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Proetidae. The type species is A. balia. |
| Amphoton zangi | Sp. nov | Valid | Sun, Jago & Bentley | Cambrian (Drumian) | Warburton Basin | Australia | A polymerid trilobite, a species of Amphoton. |
| Anataphrus kermiti | Sp. nov | Valid | Amati | Late Ordovician | Viola Springs Formation Welling Formation | United States | An isoteline asaphid, a species of Anataphrus. |
| Anataphrus megalophrys | Sp. nov | Valid | Amati | Late Ordovician | Viola Springs Formation | United States | An isoteline asaphid, a species of Anataphrus. |
| Asaphellus nazarenensis | Sp. nov | Valid | Tortello & Esteban | Early Ordovician (Tremadocian) | Santa Rosita Formation | Argentina | A species of Asaphellus. |
| Asthenopsis conandersoni | Sp. nov | Valid | Bentley & Jago | Cambrian | | Australia | |
| Astroproetus franklini | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Proetidae. |
| Bathyurina curtisi | Sp. nov | Valid | Adrain, Karim & Westrop | Ordovician (Floian) | Fillmore Formation | United States | A bathyurid. |
| Bathyurina hooki | Sp. nov | Valid | Adrain, Karim & Westrop | Ordovician (Floian) | Fillmore Formation | United States | A bathyurid. |
| Bathyurina morrisi | Sp. nov | Valid | Adrain, Karim & Westrop | Ordovician (Floian) | Fillmore Formation | United States | A bathyurid. |
| Bathyurina sumneri | Sp. nov | Valid | Adrain, Karim & Westrop | Ordovician (Floian) | Fillmore Formation | United States | A bathyurid. |
| Bristolia colberti | Sp. nov | Valid | Gapp & Lieberman | Early Cambrian | Sekwi Formation | Canada | A member of Olenelloidea, a species of Bristolia. |
| Cambrunicornia saxonica | Sp. nov | Valid | Geyer, Buschmann & Elicki | Middle Cambrian | Tröbitz Formation | Germany | A species of Cambrunicornia. |
| Caudillaenus | Gen. et sp. nov | Valid | Rábano, Gutiérrez-Marco & García-Bellido | Ordovician (late Darriwilian) | Taddrist Formation | Morocco | An illaenid. The type species is Caudillaenus nicolasi. |
| Chapmanopyge knudseni | Sp. nov | Valid | McCobb et al. | Early Ordovician | | Greenland | A species of Chapmanopyge. |
| Cheirurus falcatus | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Cheiruridae. |
| Cybantyx nebulosus | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Scutelluidae. |
| Cyphaspis heissae | Sp. nov | Valid | Van Viersen & Prescher | Middle Devonian | Ahbach Formation | Germany | An otarionine aulacopleurid, a species of Cyphaspis. |
| Cyphaspis rommersheimensis | Sp. nov | Valid | Van Viersen & Prescher | Middle Devonian | Freilingen Formation | Germany | An otarionine aulacopleurid, a species of Cyphaspis. |
| Cyphaspis walteri | Sp. nov | Valid | Van Viersen & Prescher | Middle Devonian | Bou Dib Formation | Morocco | An otarionine aulacopleurid, a species of Cyphaspis. |
| Daketia | Gen. et sp. nov | Valid | Luo et al. | Ordovician (late Tremadocian-earliest Floian) | Tangchi Formation | China | A member of Asaphida. Genus includes new species D. spinata. |
| Dalarnepeltis brevifrons | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Tropidocoryphidae. |
| Diacanthaspis krizi | Sp. nov | Valid | Mergl | Ordovician (late Katian) | Králův Dvůr Formation | Czech Republic | An odontopleurid, a species of Diacanthaspis. |
| Dicranogmus pearyi | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Lichidae. |
| Dionide carlottae | Sp. nov | Valid | Corbacho, Morrison & Ait Addi | Ordovician (Katian) | Ktaoua Formation | Morocco | A member of Asaphida belonging to the family Dionididae, a species of Dionide. |
| Dionidella venusta | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | |
| Distyrax bibullatus | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Encrinuridae. |
| Dorypyge gidgealpaensis | Sp. nov | Valid | Sun, Jago & Bentley | Cambrian (Drumian) | Warburton Basin | Australia | A polymerid trilobite, a species of Dorypyge. |
| Dulanaspis asper | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | |
| Duyunaspis paiwuensis | Sp. nov | Valid | Lei & Peng | Cambrian | Balang Formation | China | |
| Ectenaspis burkhalteri | Sp. nov | Valid | Amati | Late Ordovician | Welling Formation | United States | An isoteline asaphid, a species of Ectenaspis. |
| Ekwanoscutellum agmen | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Scutelluidae. |
| Elliptocephala jaredi | Sp. nov | Valid | Gapp & Lieberman | Early Cambrian | Sekwi Formation | Canada | A member of Olenelloidea, a species of Elliptocephala. |
| Eoharpes yijianfangensis | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | |
| Eokosovopeltis expansus | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | |
| Erratojincella? decora | Sp. nov | Valid | Yuan & Li | Cambrian | Manto Formation | China | Possibly a species of Erratojincella. |
| Ganetops | Gen. et comb. nov | Valid | Bignon, Corbacho & López-Soriano | Devonian (late Lochkovian) | | Algeria  France  Germany  Spain | A member of Acastidae belonging to the subfamily Asteropyginae. A new genus for "Asteropyge" ebbae R. and E. Richter (1954); genus also contains "Treveropyge" djemelensis Morzadec (1997), "Treveropyge"? cf. ebbae Smeenk (1983), "Paracryphaeus" gerrinensis Timm (1978) and "Acastella" lata Timm (1978). |
| Geragnostus (Novoagnostus) contractus | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | |
| Holmiella domackae | Sp. nov | Valid | Gapp & Lieberman | Early Cambrian | Sekwi Formation | Canada | A member of Olenelloidea, a species of Holmiella. |
| Holmiella taurus | Sp. nov | Valid | Gapp & Lieberman | Early Cambrian | Sekwi Formation | Canada | A member of Olenelloidea, a species of Holmiella. |
| Hungioides yanjinensis | Sp. nov | Valid | Zhou et al. | Ordovician | | China | A species of Hungioides. |
| Hystricurus zanderi | Sp. nov | Valid | Adrain et al. | Ordovician (Tremadocian) | | United States | |
| Illaenus cekovioides | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | |
| Illaenus tianrongi | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | |
| Illaenus usitatus | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | |
| Iranoleesia (Proasaphiscina?) subconica | Sp. nov | Valid | Yuan & Li | Cambrian | Manto Formation | China | A species of Iranoleesia. |
| Isotelus bradleyi | Sp. nov | Valid | Amati | Late Ordovician | Viola Springs Formation | United States | An isoteline asaphid, a species of Isotelus. |
| Isotelus skapaneidos | Sp. nov | Valid | Amati | Late Ordovician | Viola Springs Formation Welling Formation | United States | An isoteline asaphid, a species of Isotelus. |
| Isotelus violaensis | Sp. nov | Valid | Amati | Late Ordovician | Viola Springs Formation | United States | An isoteline asaphid, a species of Isotelus. |
| Jungosulcus | Gen. et 3 sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Scutelluidae. The type species is J. emilyae; genus also includes new species J. anaphalantos and J. ventricosus. |
| Kawina sinica | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | A species of Kawina or Cydonocephalus. |
| Kierarges | Gen. et sp. nov | Valid | Corbacho | Ordovician (Floian) | Fezouata Formation Santa Justa Formation | Morocco  Portugal | A member of Asaphidae. The type species is Kierarges morrisoni. |
| Lanceaspis | Gen. et sp. nov | Valid | Corbacho | Devonian (Pragian) | The Mader Platform | Morocco | A member of Acastidae. The type species is Lanceaspis hammondi. |
| Laneia | Gen. et sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Scutelluidae. The type species is L. enalios. |
| Ligiscus diana | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Scutelluidae. |
| Liolalax naresi | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Scutelluidae. |
| Liostracina tangwangzhaiensis | Sp. nov | Valid | Park et al. | Middle Cambrian | | China | A species of Liostracina. |
| Lisania changi | Sp. nov | Valid | Sun, Jago & Bentley | Cambrian (Drumian) | Warburton Basin | Australia | A polymerid trilobite, a species of Lisania. |
| Lochmanolenellus pentagonalis | Sp. nov | Valid | Mergl | Cambrian (early Dyeran) | | North America | A species of Lochmanolenellus. |
| Lochmanolenellus subquadratus | Sp. nov | Valid | Mergl | Cambrian (early Dyeran) | | North America | A species of Lochmanolenellus. |
| Lochmanolenellus trapezoidalis | Sp. nov | Valid | Mergl | Cambrian (early Dyeran) | | North America | A species of Lochmanolenellus. |
| Lyralichas qiaoi | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | |
| Mesonacis wileyi | Sp. nov | Valid | Gapp & Lieberman | Early Cambrian | Sekwi Formation | Canada | A member of Olenelloidea, a species of Mesonacis. |
| Minicryphaeus giganteus | Sp. nov | Valid | Bignon, Corbacho & López-Soriano | Devonian (Pragian) | Ihandar Formation | Morocco | A member of Acastidae belonging to the subfamily Asteropyginae, a species of Minicryphaeus. |
| Mummaspis delgadoae | Sp. nov | Valid | Gapp & Lieberman | Early Cambrian | Sekwi Formation | Canada | A member of Olenelloidea, a species of Mummaspis. |
| Nanillaenus crassus | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | |
| Nileus amplus | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | |
| Nileus australis | Sp. nov | Valid | Tortello & Esteban | Early Ordovician (Tremadocian) | Santa Rosita Formation | Argentina | A species of Nileus. |
| Olenellus baileyi | Sp. nov | Valid | Gapp & Lieberman | Early Cambrian | Sekwi Formation | Canada | A member of Olenelloidea, a species of Olenellus. |
| Olenoides sagittatus | Sp. nov | Valid | Geyer in Geyer et al. | Cambrian (Amgan) | | Kyrgyzstan | A dorypygid corynexochidan, a species of Olenoides. |
| Opoa limatula | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Scutelluidae. |
| Owensus | Gen. et sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Proetidae. The type species is O. arktoperates. |
| Parakoldinioidia akerfeldti | Sp. nov | Valid | Westrop & Adrain | Cambrian | Signal Mountain Formation | United States | A member of Missisquoiidae. |
| Parakoldinioidia akessoni | Sp. nov | Valid | Westrop & Adrain | Cambrian | Signal Mountain Formation | United States | A member of Missisquoiidae. |
| Parakoldinioidia lindgreni | Sp. nov | Valid | Westrop & Adrain | Cambrian | Signal Mountain Formation Wilberns Formation | United States | A member of Missisquoiidae. |
| Parakoldinioidia lopezi | Sp. nov | Valid | Westrop & Adrain | Cambrian | Signal Mountain Formation | United States | A member of Missisquoiidae. |
| Parakoldinioidia mendezi | Sp. nov | Valid | Westrop & Adrain | Cambrian | Signal Mountain Formation | United States | A member of Missisquoiidae. |
| Paraperaspis | Gen. et 2 sp. et comb. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | A nileid. Genus includes new species P. angustus and P. dawangouensis, as well as "Nileus" convergens Lu (1975). |
| Paraplethopeltis helli | Sp. nov | Valid | Adrain et al. | Ordovician (Tremadocian) | | United States | |
| Parillaenus exiguus | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | |
| Parillaenus vetus | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | |
| Perryus mikulici | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Encrinuridae. |
| Profallotaspis tyusserica | Sp. nov | Valid | Bushuev & Goryaeva in Bushuev, Goryaeva & Pereladov | Cambrian | Tyusser Formation | Russia | A member of Fallotaspididae. |
| Proetus confluens | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Proetidae. |
| Protolenus (Hupeolenus) bergstroemi | Sp. nov | Valid | Geyer, Buschmann & Elicki | Middle Cambrian | Tröbitz Formation | Germany | A species of Protolenus. |
| Pseudinouyia shiliuyuanensis | Sp. nov | Valid | Yuan & Li | Cambrian | Manto Formation | China | A species of Pseudinouyia. |
| Pseudoclelandia weymouthae | Sp. nov | Valid | Adrain et al. | Ordovician (Tremadocian) | | United States | |
| Pseudohystricurus wigglesorum | Sp. nov | Valid | Adrain, Karim & Westrop | Ordovician | Garden City Formation | United States | A dimeropygid trilobite. |
| Ptychobaba | Gen. et comb. nov | Valid | Pratt & Bordonaro | Cambrian | La Laja Formation Rome Formation | Argentina  United States | A new genus for "Ptychoparella" buttsi Resser (1938). |
| Punka adamsi | Sp. nov | Valid | McCobb et al. | Early Ordovician | | Greenland | A species of Punka. |
| Radiurus pauli | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Cheiruridae. |
| Raragnostus shergoldi | Sp. nov | Valid | Sun, Jago & Bentley | Cambrian (Drumian) | Warburton Basin | Australia | An agnostoid trilobite, a species of Raragnostus. |
| Rossaspis leboni | Sp. nov | Valid | Adrain et al. | Ordovician (Tremadocian) | | United States | |
| Sagavia laxa | Sp. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | |
| Sestrostega cylindrica | Sp. nov | Valid | Yuan & Li | Cambrian | Manto Formation | China | A species of Sestrostega. |
| Shanxiella (Shanxiella) latilimbata | Sp. nov | Valid | Yuan & Li | Cambrian | Manto Formation | China | A species of Shanxiella. |
| Solenoparia gatehousei | Sp. nov | Valid | Sun, Jago & Bentley | Cambrian (Drumian) | Warburton Basin | Australia | A polymerid trilobite, a species of Solenoparia. |
| Stegnopsis erythragora | Sp. nov | Valid | Amati | Late Ordovician | Viola Springs Formation Welling Formation | United States | An isoteline asaphid, a species of Stegnopsis. |
| Stegnopsis wellingensis | Sp. nov | Valid | Amati | Late Ordovician | Welling Formation | United States | An isoteline asaphid, a species of Stegnopsis. |
| Stenopareia persica | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Illaenidae. |
| Struveaspis bignoni | Sp. nov | Valid | Corbacho | Devonian (Eifelian) | | Morocco | A member of Phacopidae, a species of Struveaspis. |
| Tairongia | Gen. et sp. et comb. nov | Valid | Zhou, Yin & Zhou | Ordovician | | China | A lichid. Genus includes new species T. bachuensis, as well as "Lichas" browni Sun (1931). |
| Trinodus jii | Nom. nov | | Zhou, Yin & Zhou | Ordovician | | China | A replacement name for Trinodus latilimbatus Ji (1986). |
| Winiskia eruga | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Proetidae. |
| Winiskia leptomedia | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Proetidae. |
| Winiskia stickta | Sp. nov | Valid | Hughes & Thomas | Silurian | | Greenland | A member of the family Proetidae. |

## Other arthropods

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
| Anbarrhacus | Gen. et sp. nov | Valid | Riquelme & Hernández in Riquelme et al. | Early or middle Miocene | | Mexico | A platyrhacid polydesmidan millipede. The type species is Anbarrhacus adamantis. | Anbarrhacus adamantis |
| Annge | Gen. et sp. nov | Valid | Smith et al. | Cambrian (Templetonian) | Giles Creek Dolostone | Australia | A member of Bradoriida. Genus includes new species A. iperte. | |
| Cambrolongispina | Gen. et 2 sp. nov | Valid | Zhang, Dong & Xiao | Cambrian (Drumian) | | China | A bivalved arthropod of uncertain phylogenetic placement. Genus contains two species: Cambrolongispina reticulata and Cambrolongispina glabra. | |
| Erjiecaris | Gen. et sp. nov | Valid | Fu, Zhang & Budd | Early Cambrian | Chengjiang Lagerstätte | China | An early bivalved arthropod of uncertain phylogenetic placement. The type species is Erjiecaris minusculo. | |
| Falcatamacaris | Gen. et sp. nov | Valid | Ortega-Hernández et al. | Cambrian (Guzhangian) | Weeks Formation | United States | An artiopodan arthropod. The type species is Falcatamacaris bellua. | |
| Flemingopsis anteriospinata | Sp. nov | Valid | Smith et al. | Cambrian (Templetonian) | Giles Creek Dolostone | Australia | A member of Bradoriida. | |
| Haifengella | Gen. et sp. nov | Valid | Zhao et al. | Early Cambrian | Chengjiang Lagerstätte | China | An arthropod related to Helmetia. The type species is Haifengella corona. | |
| Jiucunella phaseloa | Sp. nov | Valid | Betts et al. | Early Cambrian | | Australia | A member of Bradoriida, a species of Jiucunella. | |
| Jixinlingella daimonikoa | Sp. nov | Valid | Betts et al. | Early Cambrian | | Australia | A member of Bradoriida, a species of Jixinlingella. | |
| Limulus darwini | Sp. nov | Valid | Kin & Błażejowski | Late Jurassic (late Tithonian) | Kcynia Formation | Poland | A horseshoe crab. Originally described as a species of Limulus; Bicknell et al. (2021) transferred this species to the genus Crenatolimulus. | |
| Maatidesmus | Gen. et sp. nov | Valid | Riquelme & Hernández in Riquelme et al. | Early or middle Miocene (c. 23–15 Mya) | Mexican amber | Mexico | A chelodesmid polydesmidan millipede. The type species is M. paachtun. | Maatidesmus paachtun |
| Monasterium ferox | Sp. nov | Valid | Smith et al. | Cambrian (Templetonian) | Giles Creek Dolostone | Australia | A member of Bradoriida. | |
| Mongolitubulus anthelios | Sp. nov | Valid | Betts et al. | Early Cambrian | | Australia | A member of Bradoriida, a species of Mongolitubulus. | |
| Mongolitubulus tunpere | Sp. nov | Valid | Smith et al. | Cambrian (Templetonian) | Giles Creek Dolostone | Australia | A member of Bradoriida. | |
| Neokunmingella moroensis | Sp. nov | Valid | Betts et al. | Early Cambrian | | Australia | A member of Bradoriida, a species of Neokunmingella. | |
| Polzia | Gen. et sp. nov | Valid | Hegna, Vega & González-Rodríguez | Cretaceous (Albian to Cenomanian) | El Doctor Formation | Mexico | A member of Thylacocephala (a group of arthropods of uncertain phylogenetic placement, possibly crustaceans). The type species is Polzia eldoctorensis. | |
| Sinskolutella cuspidata | Sp. nov | Valid | Betts et al. | Early Cambrian | | Australia | A member of Bradoriida, a species of Sinskolutella. | |
| Thylacares | Gen. et sp. nov | Valid | Haug et al. | Silurian (late Telychian) | Brandon Bridge Formation | United States | A member of Thylacocephala (a group of arthropods of uncertain phylogenetic placement, possibly crustaceans). The type species is Thylacares brandonensis. | |
| Victoriacaris | Gen. et sp. nov | Valid | Hegna, Vega & González-Rodríguez | Cretaceous (Albian to Cenomanian) | El Doctor Formation | Mexico | A member of Thylacocephala (a group of arthropods of uncertain phylogenetic placement, possibly crustaceans. The type species is Victoriacaris muhiensis. | |