# 2011 in paleomammalogy

This paleomammalogy list records new fossil mammal taxa that were described during the year 2011, as well as notes other significant paleomammalogy discoveries and events which occurred during that year.

## Newly named taxa

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes |
| Cronopio | Gen. et sp. | Valid | Rougier Apesteguía Gaetano | Cenomanian | Candeleros Formation | Argentina | A "saber-toothed" dryolestoid. |
| Crusafontia amoae | Species | Disputed | Cuenca-Bescós Badiola et al. | Hauterivian to Barremian | | Spain | A dryolestidan mammal. Martin et al. (2021) considered it a junior synonym of Crusafontia cuencana. |
| Guggenheimia crocheti | Sp. nov | Valid | Oliveira & Goin | Itaboraian | Itaboraí Basin | Brazil | A protodidelphid "ameridelphian", a species of Guggenheimia. |
| Iberica | Gen. et sp. | Valid | Badiola Canudo Cuenca-Bescós | Hauterivian/Barremian | Galve | Spain | A eobaatarid or a possible plagiaulacid multituberculate. |
| Invictokoala | Gen. et sp. | Valid | Price Hocknull | Middle Pleistocene | | Australia | A Koala. |
| Liaoconodon | Gen. et sp. | Valid | Meng Wang Li | Aptian | Jiufotang Formation | China | An "eutriconodont". |
| Lutreolina materdei | Species | Valid | Goin & de los Reyes | Late Miocene (Huayquerian) | | Peru | A relative of lutrine opossum. |
| Malleodectes | Gen. et 2 sp. | Valid | Arena et al. | Miocene | Riversleigh World Heritage Area | Australia | A member of Dasyuromorphia of uncertain phylogenetic placement. The type species is M. mirabilis; genus also includes M. moenia. |
| Naraboryctes | Gen. et sp. | Valid | Archer Beck et al. | Early Miocene | | Australia | A marsupial mole. |
| Oklatheridium minax | Species | Valid | Davis Cifelli | Aptian-Albian | Antlers Formation | USA | A deltatheroidan mammal. |
| Peradectes coprexeches | Species | Valid | Williamson Taylor | Early Paleocene | Nacimiento Formation | United States | A peradectid metatherian, a species of Peradectes. |
| Periprotodidelphis | Gen. et sp. nov | Valid | Oliveira & Goin | Itaboraian | Itaboraí Basin | Brazil | A protodidelphid "ameridelphian". The type species is Periprotodidelphis bergqvistae. |
| Sairadelphys | Gen. et sp. nov | Valid | Oliveira et al. | Pleistocene | | Brazil | A relative of Kalinowski's mouse opossum. The type species is Sairadelphys tocantinensis. |
| Sineleutherus issedonicus | Species | Valid | Averianov Lopatin Krasnolutskii | Bathonian | Itat Formation | Russia | A haramiyidan allotherian. |
| Swaindelphys encinensis | Species | Valid | Williamson Taylor | Early Paleocene | Nacimiento Formation | United States | A herpetotheriid metatherian, a species of Swaindelphys. |
| Swaindelphys johansoni | Species | Valid | Williamson Taylor | Early Paleocene | Nacimiento Formation | United States | A herpetotheriid metatherian, a species of Swaindelphys. |

## Newly named eutherians

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
| Adelpharctos ginsburgi | Sp. nov | Valid | de Bonis | Late Oligocene | | France | A hemicyonine bear, a species of Adelpharctos. | |
| Aegyptocetus | Gen. et sp. | Valid | Bianucci Gingerich | Middle Eocene | Gebel Hof Formation | Egypt | A protocetid cetacean. | |
| Agriarctos beatrix | Sp. nov | Valid | Abella, Montoya & Morales | Middle Miocene | Calatayud-Daroca Basin | Spain | An ailuropodine bear, originally described as a species of Agriarctos. It was later made the type species of the genus Kretzoiarctos. | |
| Agriotherium myanmarensis | Sp. nov | Valid | Ogino et al. | Late Miocene to early Pliocene | | Myanmar | A bear, a species of Agriotherium. | |
| Alilepus elongatus | Sp. nov | Valid | Winkler Flynn Tomida | Late Miocene | Dhok Pathan Formation | Pakistan | A leporid lagomorph, a species of Alilepus. | |
| Alilepus meini | Sp. nov | Valid | Angelone Rook | Miocene (early Messinian) | | Italy | A leporid lagomorph, a species of Alilepus. | |
| Antarctodon | Gen. et sp. | Valid | Bond Kramarz et al. | Late Ypresian | La Meseta Formation | Antarctica | An astrapotherian. | |
| Arazamys | Gen. et sp. nov | Valid | Rinderknecht, Bostelmann & Ubilla | Late Miocene (Huayquerian) | Camacho Formation | Uruguay | A dinomyid rodent. The type species is Arazamys castiglionii. | |
| Asilifelis | Gen. et sp. nov | Valid | Werdelin | Lower Miocene | Hiwegi Formation | Kenya | A felid. The type species is Asilifelis coteae. | |
| Basirepomys romensis | Sp. nov | Valid | Korth | Late Miocene (Hemphillian) | | United States | A cricetid rodent, a species of Basirepomys. | |
| Betonnia | Gen. et sp. | Valid | Williamson Weil Standhardt | Middle/Late Puercan | Nacimiento Formation | USA | A cimolestid cimolesta. | |
| Balochititanops | Gen. et sp. | Valid | Missiaen Gunnell Gingerich | Ypresian | Ghazij Formation | Pakistan | A brontotheriid. | |
| Brachygaulus | Gen. et 3 sp. nov | Valid | Korth Tabrum | Early Oligocene (Orellan) | | United States | A rodent related to mylagaulids and the mountain beaver. The type species is Brachygaulus nicholsi; genus also contains Brachygaulus leistneri and Brachygaulus xerobothrus. | |
| Caviodon cuyano | Species | Valid | Vucetich Deschamps et al. | Late Miocene or Pliocene. | Aisol Formation | Argentina | A cardiomyine rodent, a species of Caviodon. | |
| Cernictis repenningi | Sp. nov | Valid | Baskin | Miocene (middle Hemphillian) | Bidahochi Formation | United States | A galictine mustelid, a species of Cernictis. | |
| Chacomylus | Gen. et sp. | Valid | Williamson Weil | Paleocene | Nacimiento Formation | USA | A hyopsodontid condylarth. | |
| Chacopterygus | Gen. et sp. | Valid | Williamson Weil Standhardt | Middle Puercan | Nacimiento Formation | USA | A cimolestid cimolesta. | |
| Coelodonta thibetana | Species | Valid | Deng Wang et al. | Middle Pliocene | | China | Woolly rhinoceros. | |
| Comahuetherium | Gen. et sp. | Valid | Kramarz Bond | Colhuehuapian | Cerro Bandera Formation | Argentina | An astrapotheriid. | |
| Cryptobune | Gen. et sp. nov | Valid | Sigé | Paleogene | Quercy Phosphorites Formation | France | A bat. Genus includes new species C. thevenini. | |
| Cynthiacetus peruvianus | Species | Valid | Martínez-Cáceres Muizon | Late Eocene-Early Oligocene | Otuma Formation | Peru | A basilosaurid cetacean. | Cynthiacetus |
| Delotrochanter | Gen. et 3 sp. nov. | Valid | Hunt | Arikareean | | USA | A temnocyonine. The type species is Delotrochanter oryktes; genus also contains D. petersoni and D. major | |
| Democricetodon sui | Sp. nov | Valid | Maridet et al. | Early Miocene | Junggar Basin | China | A rodent belonging to the family Cricetidae. | |
| Diplacodon gigan | Species | Valid | Mihlbachler | Middle Eocene | Wiggins Formation | USA | A brontotheriid. | |
| Enhydriodon dikikae | Sp. nov | Valid | Geraads et al. | Pliocene | | Ethiopia | An otter. | |
| Eoconodon hutchisoni | Sp. nov | Valid | Clemens | Early Paleocene (Puercan) | Tullock Formation | United States | A triisodontid, a species of Eoconodon. | |
| Eotitanops pakistanensis | Species | Valid | Missiaen Gunnell Gingerich | Ypresian | Ghazij Formation | Pakistan | A brontotheriid. | Eotitanops |
| Equus (Sussemionus) ovodovi | Sp. nov | Valid | Eisenmann Sergej | Late Pleistocene | | China  Russia | A species of Equus. | |
| Eumys euryodus | Sp. nov | Valid | Korth | Oligocene (Whitneyan) | | United States | A cricetid rodent, a species of Eumys. | |
| Euprox altus | Sp. nov | Valid | Wang Zhang | Middle Miocene | Damiao Formation | China | A deer. | |
| Gobicricetodon filippovi | Sp. nov | Valid | Sen Erbajeva | Middle Miocene | | Russia | A rodent belonging to the family Cricetidae and the subfamily Cricetodontinae. | |
| Griphotherion | Gen. et sp. | Valid | López Powell | Eocene | | Argentina | A rodent-like notoungulate. | |
| Hiskatherium | Gen. et sp. | Valid | Pujos Iuliis Quispe | Santacrucian | | Bolivia | A small ground sloth. | |
| Homotherium venezuelensis | Sp. nov | Valid | Rincón Prevosti Parra | Pleistocene | Mesa Formation | Venezuela | A machairodontine felid, a species of Homotherium. | |
| Hystrix paukensis | Species | Valid | Yuichiro Nishioka Zin-Maung-Maung-Thein et al. | late Miocene/early Pliocene | | Burma | new species in the genus Hystrix (Old World porcupine). | |
| Jacobsomys dailyi | Sp. nov | Valid | May et al. | Miocene (late Hemphillian) | Horned Toad Formation | United States | A cricetid rodent. Originally described as species of Jacobsomys; Rincón et al. (2016) transferred it to the genus Postcopemys. | |
| Juramaia | Gen. et sp. | Valid | Luo Yuan et al. | Callovian to Bathonian | Tiaojishan Formation | China | A basal eutherian. The type species is Juramaia sinensis. | |
| Karydomys debruijni | Species | Valid | Maridet et al. | Early Miocene | | China | A cricetid, a species of Karydomys. | |
| Khoratpithecus ayeyarwadyensis | Species | Valid | Jaeger Soe et al. | Late Miocene | Irrawaddy Formation | Myanmar | A hominoid. | Khoratpithecus |
| Kuntinaru | Gen. et sp. | Valid | Billet Hautier et al. | Deseadan | | Bolivia | A dasypodid armadillo. | |
| Lazibemys | Gen. et sp. | Valid | Marivaux et al. | Eocene | Glib Zegdou Formation | Algeria | A zegdoumyid anomaluromorph rodent. The type species is Lazibemys zegdouensis. | |
| Lycophocyon | Gen. et sp. | Valid | Tomiya | ?Uintan-Duchesnean | Santiago Formation | USA | A caniformian carnivoran. | Lycophocyon |
| Mammacyon ferocior | Sp. nov. | Valid | Hunt | Mid- or early late Arikareean | Arikaree Group | USA | A temnocyonine, a species of Mammacyon | |
| Martes ginsburgi | Sp. nov | Valid | Montoya, Morales & Abella | Upper Miocene | | Spain | A marten. | |
| Megacricetodon beijiangensis | Species | Valid | Maridet et al. | Early Miocene | | China | A cricetid, a species of Megacricetodon. | |
| Megapeomys repenningi | Sp. nov | Valid | Tomida | Early Miocene | Nakamura Formation | Japan | An apeomyine eomyid rodent, a species of Megapeomys. | |
| Mescalerolemur | Gen. et sp. | Valid | Kirk Williams | Uintan | Devil's Graveyard Formation | USA | An adapiform strepsirrhini. | |
| Mesolambdolophus | Gen. et sp. | Valid | Holbrook Lapergola | Bridgerian North American Stage | Bridger Formation | USA | A small odd-toed ungulate of uncertain phylogenetic position, possibly related to Tapiromorpha. The type species is Mesolambdolophus setoni. | |
| Mesoprocta | Gen. et sp. nov | Valid | Croft, Chick & Anaya | Middle Miocene | | Bolivia | A dasyproctid rodent. The type species is Mesoprocta hypsodus. | |
| Microcardiodon | Gen. et sp. nov | Valid | Pérez & Vucetich | Middle Miocene | | Argentina | A member of Hystricognathi, a cavioid rodent. The type species is Microcardiodon williensis. | |
| Microtus (Pedomys) parmaleei | Sp. nov | Valid | Martin Peláez-Campomanes Honey | Latest Pleistocene | | United States | An arvicoline rodent, a species of Microtus. | |
| Minchenoletes | Gen. et sp. nov | Valid | Wang et al. | Early Eocene | Nomogen Formation | China | A member of Tapiroidea belonging to the family Lophialetidae. The type species is M. erlianensis. | |
| Mionothropus | Gen. et sp. | Valid | De Iuliis Gaudin Vicars | Huayquerian | | Peru | A megatheriid sloth. | |
| Mioparadoxurus | Gen. et sp. nov | Valid | Morales Pickford | Late Miocene | | India | A paradoxurine viverrid. The type species is M. meini. | |
| Miotomodon | Gen. et sp. nov | Valid | Korth | Late Miocene (Hemphillian) | | United States | A cricetid rodent. The type species is Miotomodon mayi. | |
| Mondegodon | Gen. et sp. | Valid | Tabuce Clavel Antunes | Earliest Eocene | | Portugal | A mesonychian. | |
| Myaingtherium | Gen. et sp. nov | Valid | Tsubamoto et al. | Late Middle Eocene | Pondaung Formation | Myanmar | A member of the family Anthracotheriidae. The type species is M. kenyapotamoides. | |
| Nannocricetus wuae | Sp. nov | Valid | Zhang et al. | Late Miocene | | China | A hamster. | |
| Nevadomys | Gen. et 3 sp. nov | Valid | Mou | Pliocene (Blancan) | Panaca Formation | United States | A relative of the long-clawed mole vole. The type species is Nevadomys fejfari; genus also contains Nevadomys lindsayi and Nevadomys downsi. | |
| Nuralagus | Gen. et sp. | Valid | Quintana Köhler Moyà-Solà | Early Pliocene | | Spain | A leporid rabbit. | Nuralagus |
| Ocucajea | Gen. et sp. | Valid | Uhen Pyenson et al. | Bartonian | Paracas Formation | Peru | A basilosaurid cetacean. | |
| Oldrichpedetes | Gen. et comb. et 3 sp. nov | Valid | Pickford & Mein | Early Miocene to early Pliocene | | Kenya  Namibia  Tunisia | A pedetid rodent, a new genus for "Megapedetes" pickfordi (Mein & Senut, 2003). Genus also contains 3 new species: Oldrichpedetes fejfari, O. brigitteae and O. praecursor. | |
| Paranotiosorex | Gen. et sp. nov | Valid | Mou | Pliocene | Panaca Formation | United States | A shrew. The type species is Paranotiosorex panacaensis. | |
| Paronychomys shotwelli | Sp. nov | Valid | Korth | Late Miocene (Hemphillian) | | United States | A cricetid rodent. Originally described as a species of Paronychomys; transferred to the separate genus Tsaphanomys by Martin & Zakrzewski (2019). | |
| Phoxomylus | Gen. et sp. | Valid | Fox | Early Tiffanian | Paskapoo Formation | Canada | A palaechthonid plesiadapiform. | |
| Pliosaccomys prowitteorum | Sp. nov | Valid | Martin & Mallory | Late Miocene Hemphillian | Ellensburg Formation | USA Washington | A pocket gopher, a species of Pliosaccomys. |
| Pliospalax complicatus | Sp. nov. | Valid | Şen Sarica | Miocene | | Turkey | A spalacid rodent, a species of Pliospalax. | |
| Postcopemys | Gen. et 2 sp. et comb. nov | Valid | Lindsay Czaplewski | Pliocene (late Hemphillian and early Blancan) | | Mexico?  United States | A cricetid rodent. The type species is Postcopemys repenningi; genus also contains Postcopemys maxumensis, as well as "Peromyscus" valensis Shotwell (1967) and "Copemys" vasquezi Jacobs (1977). | |
| Prothomomys | Gen. et sp. nov | Valid | May et al. | Miocene (late Hemphillian) | Horned Toad Formation | United States | A gopher. The type species is Prothomomys warrenensis. | |
| Protoryx tuvaensis | Species | Valid | Dmitrieva Serdyuk | Late Miocene | | Russia | A bovid. | |
| Protungulatum coombsi | Species | Valid | Archibald Zhang et al. | Maastrichtian | Hell Creek Formation | USA | A species of Protungulatum. | |
| Quebradahondomys | Gen. et sp. nov | Valid | Croft, Chick & Anaya | Middle Miocene | | Bolivia | An adelphomyine spiny rat. The type species is Quebradahondomys potosiensis. | |
| Repomys minor | Sp. nov | Valid | Mou | Pliocene (early Blancan) | Panaca Formation | United States | A cricetid rodent, a species of Repomys. | |
| Robertschochia | Nom. nov | Valid | Lucas | Paleocene | | United States | Originally described as a genus of taeniodonts and replacement name for Schochia Lucas & Williamson (1993); T. Williamson (2013) reinterpreted this fossil material as remains of taeniodont genus Wortmania. | |
| Rudiocyon | Gen. et sp. nov. | Valid | Hunt | Arikareean | John Day Formation | USA | A temnocyonine. The type species is Rudiocyon amplidens | |
| Rusingapedetes | Gen. et sp. nov | Valid | Pickford & Mein | Early Miocene | | Kenya | A pedetid rodent. The type species is Rusingapedetes tsujikawai. | |
| Rytiodus heali | Species | Valid | Domning Sorbi | Miocene | | Libya  Madagascar | A dugongid sirenian, a species of Rytiodus. | |
| Sicista primus | Sp. nov | Valid | Kimura | Early Miocene (~17 Ma) | | China | A birch mouse. | |
| Sinapospalax berdikensis | Sp. nov. | Valid | Şen Sarica | Miocene | | Turkey | A spalacid rodent, a species of Sinapospalax. | |
| Supayacetus | Gen. et sp. | Valid | Uhen Pyenson et al. | Bartonian | Paracas Formation | Peru | A basilosaurid cetacean. | |
| Tapirus rondoniensis | Sp. nov | Valid | Holanda, Ferigolo & Ribeiro | Late Pleistocene | Rio Madeira Formation | Brazil | A tapir. | |
| Tarsius sirindhornae | Sp. nov | Valid | Chaimanee et al. | Middle Miocene | Na Khaem Formation | Thailand | A tarsier. | |
| Temnocyon fingeruti | Sp. nov. | Valid | Hunt | Latest Oligocene, late mid-Arikareean | John Day Formation | USA | A temnocyonine, a species of Temnocyon | |
| Temnocyon macrogenys | Sp. nov. | Valid | Hunt | Latest Arikareean | Anderson Ranch Formation | USA | A temnocyonine, a species of Temnocyon | |
| Temnocyon subferox | Sp. nov. | Valid | Hunt | Early Arikareean | John Day Formation | USA | A temnocyonine, a species of Temnocyon | |
| Tragelaphus lockwoodi | Sp. nov. | Valid | Reed Bibi | Pliocene | Hadar Formation | Ethiopia | A species of Tragelaphus. | |
| Turiasorex | Gen. et sp. | Valid | van Dam van den Hoek Ostende Reumer | Middle - Late Miocene | | Spain | A short-snouted shrew. | |
| Umayodus | Gen. et sp. | Valid | Gelfo Sigé | Late Paleocene/Earliest Eocene | Muñami Formation | Peru | A didolodontid "condylarth". | |