# 2012 in paleomammalogy

This paleomammalogy list records new fossil mammal taxa that were described during the year 2012, as well as notes other significant paleomammalogy discoveries and events which occurred during that year.

## Non-eutherian mammals

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes |
| Abderites aisenense | Sp. nov | Valid | Abello & Rubilar Rogers | Middle Miocene | Collón Cura Formation Río Frías Formation | Argentina  Chile | A marsupial, a member of Paucituberculata, a species of Abderites. |
| Condorodon | Gen. et sp. nov | Valid | Gaetano & Rougier | Middle Jurassic | Cañadón Asfalto Formation | Argentina | An amphilestid. The type species is Condorodon spanios. |
| ?Ectypodus riansensis | Sp. nov | Valid | Vianey-Liaud in Marandat et al. | Earliest Eocene | | France | A neoplagiaulacid multituberculate, possibly a species of Ectypodus. |
| Greniodon | Gen. et sp. nov | Valid | Goin et al. | Eocene (early Lutetian) | Andesitas Huancache Formation | Argentina | A gondwanatherian. The type species is Greniodon sylvaticus. |
| Kouriogenys | Gen. et comb. nov | Valid | Davis | Berriasian | | United Kingdom | A peramuran mammal, a new genus for the species originally named Spalacotherium minus Owen 1871. |
| Peramuroides | Gen. et sp. nov | Valid | Davis | Berriasian | | United Kingdom | A peramuran mammal. The type species is Peramuroides tenuiscus. |
| Priscakoala | Gen. et sp. nov | Valid | Black, Archer, & Hand | Miocene | Riversleigh World Heritage Area fossil deposit | Australia | A phascolarctid. |
| Thylacodon montanensis | Sp. nov | Valid | Williamson et al. | Palaeocene | | United States | A metatherian closely related to Swaindelphys and Herpetotheriidae, a species of Thylacodon. |
| Tjukuru | Gen. et sp. nov | Valid | Prideaux & Tedford | Pliocene | Tirari Formation | Australia | A lagostrophine kangaroo. The type species is Tjukuru wellsi. |

## Eutherians
### Research

* A phylogenetic analysis of living and fossil members of Carnivoramorpha is published by Michelle Spaulding and John J. Flynn (2012).
* A study of fossil giant deers is published by I. A. Vislobokova (2012).
* A study of the anatomy of skull and teeth of the proboscidean Eritherium azzouzorum is published by Emmanuel Gheerbrant, Baadi Bouya and Mbarek Amaghzaz (2012).

### New taxa

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes |
| Acritophiomys | Gen. et sp. nov | Valid | Sallam, Seiffert & Simons | Late Eocene | | Egypt | A phiomorph. The type species is Acritophiomys bowni. |
| Adjidaumo lophatus | Sp. nov | Valid | Korth | Eocene (Chadronian) | | United States | An eomyid rodent, a species of Adjidaumo. |
| Aepyceros datoadeni | sp nov | Valid | Geraads, Bobe & Reed | Pliocene | Hadar Formation | Ethiopia | A species of impala. |
| Afrasia | Gen. et sp. nov | Valid | Chaimanee et al. | Eocene | Pondaung Formation | Myanmar | A primitive anthropoid. The type species is Afrasia djijidae. |
| Afrodon gheerbranti | sp nov | Valid | De Bast, Sigé & Smith | Early Palaeocene | Hainin Formation | Belgium | An adapisoriculid, a species of Afrodon. |
| Aguascalientia minuta | sp nov | Valid | Rincon, Bloch, Suarez, MacFadden & Jaramillo | Early Miocene | Las Cascadas Formation | Panama | A floridatraguline camelid, a species of Aguascalientia. |
| Aguascalientia panamaensis | sp nov | Valid | Rincon, Bloch, Suarez, MacFadden & Jaramillo | Early Miocene | Las Cascadas Formation | Panama | A floridatraguline camelid, a species of Aguascalientia. |
| Ailuravus subita | sp nov | Valid | Compte, Sabatier & Vianey-Liaud | Eocene (Bartonian) | | France | A pseudosciurid rodent. Originally described as a species of Ailuravus, but subsequently made the type species of a separate genus Auroremys. |
| Alloptox (Mizuhoptox) japonicus | Subgen. and sp. nov | Valid | Tomida | Early Miocene | | Japan | A pika, a species of Alloptox. |
| Alloptox katinkae | sp nov | Valid | Angelone & Hír | Early Middle Miocene | | Hungary | A pika, a species of Alloptox. |
| Anchilophus (Paranchilophus) jeanteti | sp nov | Valid | Remy | Eocene (Bartonian) | | France | A member of Palaeotheriidae, a species of Anchilophus. |
| Ancylotherium hellenicum | Sp. nov | Valid | Koufos | Late Miocene | | Greece | A chalicothere, a species of Ancylotherium. |
| Andemys | Gen. et sp. nov | Valid | Bertrand et al. | Tinguirirican | Abanico Formation | Chile | A caviomorph rodent related to dasyproctids. The type species is Andemys termasi. |
| Apterodon langebadreae | sp nov | Valid | Grohé et al. | Eocene (late Bartonian) | | Libya | A hyaenodontid, a species of Apterodon. |
| Archaeophocaena | Gen. et sp. nov. | Valid | Murakami et al. | Late Miocene | Koetoi Formation | Japan | A porpoise. The type species is Archaeophocaena teshioensis. |
| Asilifelis | Gen. et sp. nov. | Valid | Werdelin | Early Miocene | Hiwegi Formation | Kenya | A felid. The type species is Asilifelis cotae. |
| Babameryx | Gen. et sp. nov | Valid | Mennecart et al. | Late Oligocene | | Switzerland | A ruminant. The type species is Babameryx engesseri. |
| Bagacricetodon | Gen. et sp. nov | Valid | Rodrigues, Marivaux & Vianey-Liaud | Oligocene | | China | A cricetid rodent. The type species is Bagacricetodon tongi. |
| Barberapithecus | Gen. et sp. nov | Valid | Alba & Moyà-Solà | Middle to Late Miocene | | Spain | A crouzeliine pliopithecid. The type species is Barberapithecus huerzeleri. |
| Bartelsia | Gen. et sp. nov | Valid | Gunnell | Early Eocene (earliest Bridgerian) | | United States | A plesiadapiform, a relative of Uintasorex. The type species is Bartelsia pentadactyla. |
| Berrulestes | Gen. et 3 sp. nov | Valid | Hooker & Russell | Paleocene | | France | A macroscelidean. The type species is Berrulestes phelizoni; the other species are B. pellouini and B. poirieri. |
| Bohaskaia | Gen. et sp. nov | Valid | Vélez-Juarbe & Pyenson | Early Pliocene | Yorktown Formation | United States | A monodontid. The type species is Bohaskaia monodontoides. |
| Bomburodon | Nom. nov. | Valid | Williamson & Carr | Paleocene | | United States | A replacement name for the condylarth genus Bomburia Van Valen, 1978. |
| Borisodon | Gen. et comb. nov | Valid | Archibald & Averianov | Turonian | | Kazakhstan | A zhelestid, a new genus for "Sorlestes" kara (Nessov, 1993). |
| Bustylus folieae | sp nov | Valid | De Bast, Sigé, & Smith | Early Palaeocene | Hainin Formation | Belgium | An adapisoriculid, a species of Bustylus. |
| Cachiyacuy | Gen. and 2 sp. nov | Valid | Antoine et al. | Eocene (latest Lutetian, approx. 41 Ma) | Yahuarango Formation | Peru | A caviomorph rodent. Genus contains two species: Cachiyacuy contamanensis and Cachiyacuy kummeli. |
| Canaanimys | Gen. and sp. nov | Valid | Antoine et al. | Eocene (latest Lutetian, approx. 41 Ma) | Yahuarango Formation | Peru | A caviomorph rodent. The type species is Canaanimys maquiensis. |
| Canis arnensis kudarensis | Subsp. nov | Valid | Baryshnikov | Middle Pleistocene | | South Ossetia | A small coyote-like canid, a subspecies of Canis arnensis. |
| Canis lupus maximus | Subsp. nov. | Valid | Boudadi-Maligne | Late Pleistocene | | France | A subspecies of gray wolf. |
| Carposorex burkarti | sp nov | Valid | Hugueney, Mein & Maridet | Miocene | | France | A shrew, a species of Carposorex. |
| Centimanomys gigantus | Sp. nov | Valid | Korth | Eocene (Chadronian) | | United States | An eomyid rodent, a species of Centimanomys. |
| Chubutomys navaensis | sp nov | Valid | Pérez, Krause & Vucetich | Late Oligocene | Sarmiento Formation | Argentina | A member of Hystricognathi, a cavioid rodent; a species of Chubutomys. |
| Colpodon antucoensis | sp nov | Valid | Shockey et al. | Miocene | Cura-Mallín Formation | Chile | A leontiniid notoungulate, a species of Colpodon. |
| Coryphodon pisuqti | Sp. nov | Valid | Dawson | Wasatchian | Margaret Formation | Canada | A pantodont, a species of Coryphodon. |
| Cristadjidaumo skinneri | sp nov | Valid | Emry & Korth | Late Eocene | White River Formation | United States | An eomyid, a species of Cristadjidaumo. |
| Dakotallomys whitei | Sp. nov | Valid | Korth | Oligocene (Orellan) | Dunbar Creek Formation | United States | An aplodontiid rodent belonging to the subfamily Prosciurinae. |
| Damalborea grayi | sp nov | Valid | Geraads, Bobe & Reed | Pliocene | Hadar Formation | Ethiopia | A member of Alcelaphini. |
| Damaliscus hypsodon | Sp. nov | Valid | Faith et al. | Middle Pleistocene | | Kenya  Tanzania | An alcelaphine bovid, a species of Damaliscus. |
| Dasychoerus natrunensis | Sp. nov | Valid | Pickford | Late Miocene to early Pliocene | | Egypt | A suid, a species of Dasychoerus (considered by some authors to be a subgenus of the genus Sus). |
| Dryomomys dulcifer | sp nov | Valid | Chester & Beard | Late Paleocene | Big Multi Quarry | United States | A micromomyid plesiadapiform, a species of Dryomomys. |
| Dushimys | Gen. et sp. nov | Valid | Zijlstra | Quaternary, probably middle Pleistocene | | Curaçao | An oryzomyine sigmodontine rodent. The type species is Dushimys larsi. |
| Elmerriggsia | Gen. et sp. nov | Valid | Shockey et al. | Late Oligocene | | Argentina | A leontiniid notoungulate. The type species is Elmerriggsia fieldia. |
| Eotheroides clavigerum | sp nov | Valid | Zalmout & Gingerich | Eocene (Priabonian) | Birket Qarun Formation | Egypt | A dugongid sirenian, a species of Eotheroides. |
| Eotheroides sandersi | sp nov | Valid | Zalmout & Gingerich | Eocene (Priabonian) | Birket Qarun Formation | Egypt | A dugongid sirenian, a species of Eotheroides. |
| Eotmantsoius | Gen. et sp. nov | Valid | Tabuce et al. | Middle or Late Eocene | | Libya | A member of Macroscelidea. The type species is Eotmantsoius perseverans. |
| Eoviscaccia frassinettii | Sp. nov | Valid | Bertrand et al. | Tinguirirican | Abanico Formation | Chile | A caviomorph rodent related to chinchillids, a species of Eoviscaccia. |
| Epipeltephilus kanti | sp nov | Valid | González Ruiz et al. | Late Miocene (Chasicoan) | Arroyo Chasicó Formation | Argentina | A peltephilid cingulate, a species of Epipeltephilus. |
| Eptenonnus | Gen. et sp. nov | Valid | Rosina & Semenov | Late Miocene | | Ukraine | A vesper bat. The type species is Eptenonnus gritsevensis. |
| Eucricetodon bagus | Sp. nov | Valid | Rodrigues, Marivaux & Vianey-Liaud | Oligocene | | China | A cricetid rodent, a species of Eucricetodon. |
| Eucricetodon jilantaiensis | Sp. nov | Valid | Rodrigues, Marivaux & Vianey-Liaud | Oligocene | | China | A cricetid rodent, a species of Eucricetodon. |
| Gandheralophus | Gen. et sp. nov | Valid | Missiaen & Gingerich | Early Eocene | Ghazij Formation | Pakistan | An isectolophid tapiromorph. Its species are G. minor and G. robustus. |
| Gazella harmonae | sp nov | Valid | Geraads, Bobe & Reed | Pliocene | Hadar Formation | Ethiopia | A species of gazelle. |
| Geotrypus minor | sp nov | Valid | Ziegler | Early Oligocene | | Germany | A talpid. Originally described as a species of Geotrypus; subsequently transferred to the separate genus Tegulariscaptor. |
| Gigarton | Gen. et 3 sp. nov | Valid | Hooker & Russell | Paleocene | | France | A macroscelidean. The type species is Gigarton meyeri; the other species are G. sigogneauae and G. louisi. |
| Gobiolagus aliwusuensis | Sp. nov | Valid | Fostowicz-Frelik et al. | Middle Eocene | | China | A palaeolagid lagomorph, a species of Gobiolagus. |
| Hanakia agadjaniani | sp nov | Valid | Rosina & Rummel | Early Miocene | | Germany | A vesper bat, a species of Hanakia. |
| Hesperogaulus shotwelli | sp nov | Valid | Calede & Hopkins | Miocene | | United States | A mylagaulid, a species of Hesperogaulus. |
| Holmesina rondoniensis | sp nov | Valid | Góis et al. | Late Pleistocene | Rio Madeira Formation | Brazil | A pampatheriid cingulate, a species of Holmesina. |
| Indusomys | Nom. nov | Valid | Gunnell et al. | Eocene | | Pakistan | A replacement name for the primate genus Indusius Gunnell, Gingerich, Ul-Haw, Bloch, Kahn and Clyde, 2008. |
| Kretzoiartcos | Gen. et comb. nov | Valid | Abella et al. | Middle Miocene | Calatayud-Daroca Basin | Spain | An ailuropodine bear, a new genus for "Agriarctos" beatrix Abella, Montoya & Morales (2011). |
| Kurdalagonus | Gen. et sp. nov | Valid | Tarasenko & Lopatin | Miocene | Blinovo Formation | Russia | A baleen whale belonging to the family Cetotheriidae. The type species is Kurdalagonus mchedlidzei. Tarasenko & Lopatin (2012) originally assigned the new species K. adygeicus, as well as the species "Cetotherium" maicopicum Spasskii, 1951 to the genus Kurdalagonus as well; however, Gol'din & Startsev (2016) excluded K. adygeicus from the genus and stated that "C." maicopicum requires further research to determine its phylogenetic affinities. |
| Lainodon ragei | Sp. nov. | Valid | Gheerbrant & Astibia | Late Cretaceous (Campanian or Maastrichtian) | | Spain | A zhelestid, a species of Lainodon. |
| Leptacodon donkroni | sp nov | Valid | Rose et al. | Earliest Eocene | Willwood Formation | United States | A nyctitheriid soricomorph, a species of Leptacodon. |
| Leptophoca amphiatlantica | sp nov | Disputed | Koretsky, Ray & Peters | Miocene | Breda Formation Calvert Formation St Mary's Formation | Netherlands  United States | An earless seal. Dewaele, Lambert & Louwye (2017) considered this species to be nomen dubium. |
| Litolophus ghazijensis | Species | Valid | Missiaen & Gingerich | Early Eocene | Ghazij Formation | Pakistan | An eomoropid chalicotherioid, a species of Litolophus. |
| Louisina marci | sp nov | Valid | Hooker & Russell | Paleocene | | France | A macroscelidean, a species of Louisina. |
| Megaleptictis | Gen. et sp. nov | Valid | Meehan & Martin | Chadronian/?Orellan | White River Group | United States | A large leptictid. |
| Megalomys georginae | Sp. nov | Valid | Turvey, Brace & Weksler | ?Late Pleistocene–late Holocene | | Barbados | A rice rat, a species of Megalomys. |
| Meherrinia | Gen. et sp. nov | Valid | Geisler, Godfrey 7 Lambert | Late Miocene | Eastover Formation | United States | A river dolphin. |
| Melaneremia schrevei | Sp. nov | Valid | Hooker | Eocene (earliest Ypresian) | Woolwich Formation | United Kingdom | A microchoerine omomyid primate, a species of Melaneremia. |
| Mellalechinus | Nom. nov | | Zijlstra | Miocene | | Morocco | An erinaceid; a replacement name for Protechinus Lavocat (1961). |
| Mesonyx nuhetingensis | Sp. nov | Valid | Jin | Early Eocene | Arshanto Formation | China | A mesonychid, a species of Mesonyx. |
| Metanchilophus | Gen. et comb. et 2 sp. et. subsp. nov | Valid | Remy | Eocene | | France  Switzerland  United Kingdom | A member of Palaeotheriidae. A new genus for "Anchilophus" dumasi; genus also contains "Anchilophus" radegondensis, "Anchilophus" gaudini (including new subspecies Metanchilophus gaudini fontensis) and "Anchilophus" depereti, as well as new species Metanchilophus castrensis and Metanchilophus chaubeti. |
| Metanoiamys paradoxus | Species | Valid | Emry & Korth | Late Eocene | White River Formation | United States | An eomyid, a species of Metanoiamys. |
| Miocaperea | Gen. et sp. nov | Valid | Bisconti | Miocene | Pisco Formation | Peru | A neobalaenid (a relative of pygmy right whale). The type species is Miocaperea pulchra. |
| Miophocaena | Gen. et sp. nov. | Valid | Murakami et al. | Late Miocene | Koetoi Formation | Japan | A porpoise. The type species is Miophocaena nishinoi. |
| Miostrellus petersbuchensis | sp nov | Valid | Rosina & Rummel | Early Miocene | | Germany | A vesper bat, a species of Miostrellus. |
| Morlodon | Gen. et sp. nov | Valid | Solé | Early Eocene | | Europe | A proviverrine hyaenodontid. The type species is Morlodon vellerei. |
| Mylagaulus cornusaulax | sp nov | Valid | Czaplewski | Late Miocene | | United States | A mylagaulid rodent. |
| Myotis korotkevichae | Sp. nov | Valid | Rosina & Semenov | Late Miocene | | Ukraine | A mouse-eared bat. |
| Namatomys erythrus | sp nov | Valid | Emry & Korth | Late Eocene | White River Formation | United States | An eomyid, a species of Namatomys. |
| Nanomomys | Gen. et sp. nov | Valid | Rose et al. | Earliest Eocene | Willwood Formation | United States | A plesiadapiform, a possible member of Microsyopidae. The type species is Nanomomys thermophilus. |
| Nementchatherium rathbuni | Sp. nov | Valid | Tabuce et al. | Middle or Late Eocene | | Libya | A member of Macroscelidea, a species of Nementchatherium. |
| Neophiomys | Gen. et comb. nov | Valid | Coster et al. | Early Oligocene | | Libya | A rodent, a member of Hystricognathi; a new genus for "Phiomys" paraphiomyoides Wood, 1968. |
| Nesiotites rafelinensis | sp nov | Valid | Rofes et al. | Early Pliocene | | Spain | A shrew, a species of Nesiotites. Argued by different authors to be either a probable junior synonym of Nesiotites ponsi or a valid and distinct species. |
| Nestoritherium linxiaense | sp nov | Valid | Chen, Deng, He & Chen | Early Late Miocene | Liushu Formation | China | A chalicothere, a species of Nestoritherium. |
| Omanitherium | Gen. et sp. nov | Valid | Seiffert et al. | Earliest Oligocene (earliest Rupelian) | Ashawq Formation | Oman | A proboscidean, a relative of Barytherium. The type species is Omanitherium dhofarensis. |
| Pappocricetodon neimongolensis | Sp. nov | Valid | Li | Middle Eocene | Irdin Manha Formation | China | A cricetid rodent, a species of Pappocricetodon. |
| Parastegosimpsonia | Gen. et sp. nov | Valid | Ciancio et al. | Paleogene (?Eocene) | | Peru | An astegotheriine dasypodid armadillo. The type species is Parastegosimpsonia peruana; genus might contain a second, yet-unnamed species. |
| Pardinamys | Gen. et sp. nov | Valid | Ortiz, Jayat & Steppan | Late Pliocene (Uquian) | Uquía Formation | Argentina | A phyllotine sigmodontine rodent. The type species is Pardinamys humahuaquensis. |
| Paromomys libedianus | sp nov | Valid | Silcox & Williamson | Early Paleocene (Torrejonian) | Nacimiento Formation | United States | A paromomyid plesiadapiform, a species of Paromomys. |
| Paschatherium levei | sp nov | Valid | Hooker & Russell | Early Eocene | | France | A macroscelidean, a species of Paschatherium. |
| Phiocricetomys atavus | Sp. nov | Valid | Coster et al. | Early Oligocene | | Libya | A rodent, a member of Hystricognathi; a species of Phiocricetomys. |
| Plagioctenoides tombowni | sp nov | Valid | Rose et al. | Earliest Eocene | Willwood Formation | United States | A nyctitheriid soricomorph, a species of Plagioctenoides. |
| Platychoerops antiquus | Sp. nov | Valid | Boyer, Costeur & Lipman | Paleocene | | France | A plesiadapid, a species of Platychoerops. |
| Platygonus pollenae | Sp. nov | Valid | Prothero & Grenader | Late Miocene (Hemphillian) | | United States | A peccary, a species of Platygonus. |
| Plecotus schoepfelii | sp nov | Valid | Rosina & Rummel | Early Miocene | | Germany | A vesper bat, a species of Plecotus. |
| Plesiodipus wangae | Sp. nov | Valid | Rodrigues, Marivaux & Vianey-Liaud | Oligocene | | China | A cricetid rodent, a species of Plesiodipus. |
| Plesiotypotherium casirense | Sp. nov | Valid | Cerdeño et al. | Late Miocene | | Bolivia | A mesotheriid notoungulatan, a species of Plesiotypotherium. |
| Pristifelis | Gen. et comb. nov | Valid | Salesa et al. | Miocene | | Western Eurasia | A feline felid, a new genus for Felis attica. |
| Prodendrogale engesseri | sp nov | Valid | Ni & Qiu | Late Miocene | | China | A treeshrew, a species of Prodendrogale. |
| Proeggysodon | Gen. et sp. nov | Valid | Bai & Wang | Late Eocene | Possibly Ulan Gochu Formation | China | An odd-toed ungulate, an eggysodontine rhinocerotoid. The type species is Proeggysodon qiui. |
| Prolouisina | Gen. et comb. nov | Valid | Hooker & Russell | Paleocene | | Germany | A macroscelidean, a new genus for "Louisina" atavella (Russell, 1964). |
| Proremiculus | Gen. et sp. nov | Valid | De Bast, Sigé & Smith | Early Palaeocene | Hainin Formation | Belgium | An adapisoriculid. Its type species is Proremiculus lagnauxi. |
| Protictitherium thessalonikensis | sp nov | Valid | Koufos | Late Miocene | | Greece | An ictitheriine hyena, a species of Protictitherium. |
| Pseudocricetops | Gen. et sp. nov | Valid | Rodrigues, Marivaux & Vianey-Liaud | Oligocene | | China | A cricetid rodent. The type species is Pseudocricetops matthewi. |
| Pseudoloris cuestai | sp nov | Valid | Minwer-Barakat, Marigó & Moyà-Solà | Middle Eocene | | Spain | A microchoerine omomyid, a species of Pseudoloris. |
| Pterophocaena | Gen. et sp. nov. | Valid | Murakami et al. | Late Miocene | Wakkanai Formation | Japan | A porpoise. The type species is Pterophocaena nishinoi. |
| Pucatherium | Gen. et sp. nov | Valid | Herrera, Powell & Del Papa | Middle–late Eocene | Casa Grande Formation Geste Formation Lumbrera Formation Quebrada de los Colorados Formation | Argentina | An armadillo of uncertain phylogenetic placement. The type species is Pucatherium parvum. |
| Remys major | Sp. nov | Valid | Compte, Sabatier & Vianey-Liaud | Eocene (Bartonian) | | France  Switzerland | A theridomyid rodent, a species of Remys. |
| Sinomastodon jiangnanensis | Sp. nov | Valid | Wang et al. | Early Pleistocene | | China | A gomphothere, a species of Sinomastodon. |
| Skouraia | Gen. et sp. nov | Valid | Geraads, El Boughabi & Zouhri | Late Miocene | Aït Kandoula Formation | Morocco | A caprin bovid. The type species is Skouraia helicoides. |
| Styriofelis vallesiensis | sp nov | Valid | Salesa et al. | Late Miocene | | Spain | A feline felid. Originally described as a species of Styriofelis, but subsequently transferred to the separate genus Leptofelis. |
| Sulaimanius | Nom. nov | Valid | Gunnell et al. | Eocene | | Pakistan | A replacement name for the primate genus Sulaimania Gunnell, Gingerich, Ul-Haw, Bloch, Kahn and Clyde, 2008. |
| Sylvochoerus | Gen. et sp. nov | Disputed | Frailey & Campbell | Late Miocene or Quaternary | Madre de Dios Formation | Western Amazon Basin | A peccary. The type species is Sylvochoerus woodburnei. Gasparini et al. (2021) considered S. woodburnei to be a junior synonym of the white-lipped peccary. |
| Tachyoryctoides engesseri | sp nov | Valid | Wang & Qiu | Early Miocene | Lanzhou Basin | China | A muroid rodent, a species of Tachyoryctoides. |
| Tachyoryctoides minor | sp nov | Valid | Wang & Qiu | Early Miocene | Lanzhou Basin | China | A muroid rodent, a species of Tachyoryctoides. |
| Tardenomys | Gen. et sp. nov | Valid | Compte, Sabatier & Vianey-Liaud | Eocene (Bartonian) | | France  Switzerland | A theridomyid rodent. The type species is Tardenomys chartreuvensis. |
| Teilhardimys brisswalteri | sp nov | Valid | Hooker & Russell | Paleocene | | France | A macroscelidean, a species of Teilhardimys. |
| Teilhardina gingerichi | Sp. nov | Disputed | Rose et al. | Earliest Eocene | Willwood Formation | United States | An omomyid primate, a species of Teilhardina. Considered to be a junior synonym of Teilhardina brandti by Morse et al. (2019). |
| Thryptodon | Gen. et sp. nov | Valid | Hooker & Russell | Paleocene | | France | A macroscelidean. The type species is Thryptodon brailloni. |
| Tinimomys tribos | sp nov | Valid | Chester & Beard | Late Paleocene | Big Multi Quarry | United States | A micromomyid plesiadapiform, a species of Tinimomys. |
| Tragomys | Gen. et sp. nov | Valid | Agusti, Bover & Alcover | Pliocene | | Spain | A cricetid rodent. The type species is Tragomys macpheei. |
| Tupaia storchi | sp nov | Valid | Ni & Qiu | Late Miocene | | China | A treeshrew, a species of Tupaia. |
| Turkanamys | Gen. et sp. nov | Valid | Marivaux et al. | Late Oligocene | | Kenya | A phiomorph rodent. The type species is Turkanamys hexalophus. |
| Tuscahomys walshi | Sp. nov | Valid | Anemone, Dawson & Beard | Early Eocene (late early Wasatchian) | | United States | A cylindrodontid rodent, a species of Tuscahomys. |
| Tuscahomys worlandensis | Sp. nov | Valid | Rose et al. | Earliest Eocene | Willwood Formation | United States | A cylindrodontid rodent, a species of Tuscahomys. |
| Vampalus | Gen. et sp. et comb. nov | Valid | Tarasenko & Lopatin | Miocene | | Russia | A cetotheriid baleen whale belonging to the subfamily Herpetocetinae. The type species is Vampalus sayasanicus from Chechnya; genus also contains "Cetotherium" helmerseni Brandt, 1871 from Krasnodar Krai. |
| Vasseuromys cristinae | sp nov | Valid | Ruiz-Sánchez et al. | Middle Miocene | | Spain | A dormouse, a species of Vasseuromys. |
| Vasseuromys rambliensis | sp nov | Valid | Ruiz-Sánchez et al. | Lower Miocene | | Spain | A dormouse, a species of Vasseuromys. |
| Victoriaceros | Gen. et sp. nov | Valid | Geraads, McCrossin & Benefit | Middle Miocene | Makobo beds | Kenya | An elasmotheriine rhinoceros. Type species is Victoriaceros kenyensis. |
| Victoriamys | Gen. et comb. nov | Valid | Martin | Pleistocene | | Italy  Spain | A vole, a new genus for the species "Allophaiomys" chalinei. |
| Viretia | Gen. et comb. nov | Valid | Hugueney, Mein and Maridet | Miocene | | France  Slovakia | A shrew, a new genus for "Sorex" gracilidens. |
| Walbeckodon | Gen. et 2 sp. nov | Valid | Hooker & Russell | Paleocene | | France  Germany | A macroscelidean. The type species is Walbeckodon krumbiegeli; the second species is Walbeckodon girardi. |
| Waldochoerus | Gen. et sp. nov | Disputed | Frailey & Campbell | Late Miocene or Quaternary | | Western Amazon Basin | A peccary. The type species is Waldochoerus bassleri. Gasparini et al. (2021) considered W. bassleri to be a junior synonym of the collared peccary. |
| Witenia yolua | Sp. nov | Valid | Rodrigues, Marivaux & Vianey-Liaud | Oligocene | | China | A cricetid rodent, a species of Witenia. |
| Witwatia sigei | Sp. nov | Valid | Ravel et al. | Early Eocene | | Tunisia | A philisid bat, a species of Witwatia. |
| Yamatocetus | Gen. et sp. nov | Valid | Okazaki | Late Oligocene | Jinnobaru Formation | Japan | An eomysticetid baleen whale. The type species is Yamatocetus canaliculatus. |
| Yuruatherium | Gen. et sp. et comb. nov | Valid | Ciancio et al. | Paleogene (including Eocene) | | Argentina  Peru | A member of Cingulata of uncertain phylogenetic placement, similar to Machlydotherium and Eocoleophorus. The type species is Paleogene (?Eocene) Yuruatherium tropicalis; genus also contains Eocene (Mustersan) "Machlydotherium" intortum Ameghino. |