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Cephalomys Temporal range: Oligocene–Miocene PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Rodentia
Family:	†Cephalomyidae
Genus:	†Cephalomys Ameghino, 1897
Synonyms
Orchiomys Ameghino, 1897

Cephalomys is an extinct genus of rodent that inhabited South America during the Oligocene and Miocene epochs.

Distribution

Cephalomys arcidens inhabited Patagonia during the Late Oligocene.

References

1. Cephalomys in the Paleobiology Database
2. Busker, Felipe; Arnal, Michelle (16 October 2024). "The last piece of the puzzle, the DP4 of Cephalomys arcidens (Rodentia, Caviomorpha) from the late Oligocene of Patagonia (Argentina)". Historical Biology: 1–11. doi:10.1080/08912963.2024.2413705. ISSN 0891-2963. Retrieved 14 November 2024 – via Taylor and Francis Online.

v t e Hystricomorpha
Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Rodentia
Ctenodactylomorphi Incertae sedis †Butomys †Mergenomys †Chapattimyidae Basalomys Birbalomys Chapattimys Kazygurtia Subathumys †Baluchimyinae Asterattus Baluchimys Lindsaya Lophibaluchia Wakkamys Zindapiria †Chapattimyinae Bolosomys Chapattimys Chkhikvadzomys Geitonomys Gumbatomys Khodzhentia Terrarboreus Ctenodactylidae †Africanomys Ctenodactylus Felovia †Irhoudia †Karakoromys Massoutiera †Metasayimys Pectinator †Pellegrinia †Pireddamys †Proafricanomys †Prosayimys †Sardomys †Sayimys †Tartaromys Diatomyidae †Diatomys †Fallomus †Inopinatia Laonastes †Marymus †Pierremus †Willmus †Tamquammyidae Orogomys Tsagankhushumys †Cocomyinae Cocomys †Tamquammyinae Adolomys Bumbanomys Kharomys Sharomys Tsagamys Ulanomys Viriosomys †Tsinlingomyinae Tsinlingomys †Yuomyidae Advenimus Petrokozlovia Saykanomys Yuomys
Hystricognathiformes †Tsaganomyidae Coelodontomys Cyclomilus Tsaganomys Hystricognathi Phiomorpha Bathyergomorpha †Paracryptomys Bathyergidae Bathyergus Cryptomys Fukomys Georychus Heliophobius †Bathyergoidae Bathyergoides Heterocephalidae Heterocephalus †Diamantomyidae Diamantomys Metaphiomys Pomonomys Prepomonomys Hystricidae Atherurus Hystrix †Miohystrix †Sivacanthion Trichys †Xenohystrix †Kenyamyidae Kenyamys Simonimys †Myophiomyidae †Myophiomyinae Elmerimys Myophiomys Phiomyoides †Phiocricetomyinae Phiocricetomys Petromuridae †Apodecter Petromus †Tufamys †Phiomyidae Acritophiomys Andrewsimys Elwynomys Gaudeamus Phiomys Thryonomyidae †Epiphiomys †Kochalia †Monamys †Neosciuromys †Paraphiomys †Paraulacodus †Protohummus †Sacaresia Thryonomys Caviomorpha See below↓
Caviomorpha Incertae sedis †Luribayomys Cavioidea †Guiomys †Scotamys Caviidae Caviinae †Allocavia †Cardiomys Cavia †Caviops †Dolicavia Galea †Macrocavia Microcavia †Neocavia †Palaeocavia †Pascualia Dolichotinae Dolichotis †Eodolichotis Pediolagus †Pliodolichotis †Propediolagus †Rhodanodolichotis Hydrochoerinae †Anatochoerus †Cardiatherium †Contracavia †Hydrochoeropsis Hydrochoerus Kerodon †Neochoerus †Nothydrochoerus †Phugatherium †Procellusignum †Xenocardia Ctenomyidae Ctenomys Dasyproctidae †Alloiomys †Australoprocta †Brasinamys Dasyprocta †Incamys †Megastus Myoprocta †Neoreomys †Palmiramys Dinomyiidae †Agnomys †Borikenomys †Pseudodiodomus Dinomyinae Dinomys †Telodontomys †Eumegamyinae Arazamys Briaromys Colpostemma Doellomys Eumegamysops Eumegamys Gyriabrus Isostylomys Josephoartigasia Orthomys Pentastylodon Pseudosigmomys Telicomys Tetrastylus †Potamarchinae Eusigmomys Olenopsis Potamarchus Scleromys Simplimus †Eocardiidae †Eocardiinae Chubutomys Eocardia Matiamys Neophanomys Phanomys Shistomys †Luantinae Asteromys Luantus †Neoepiblemidae Doryperimys Neoepiblema Perimys Phoberomys †Cephalomyidae Banderomys Cephalomyopsis Cephalomys Litodontomys Soriamys Chinchilloidea Abrocomidae Abrocoma Cuscomys †Protabrocoma Chinchillidae Chinchilla †Eoviscaccia †Incamys Lagidium Lagostomus †Pliolagostomus †Prolagostomus Erethizontoidea Erethizontidae †Branisamyopsis †Cholamys †Eopululo †Hypsosteiromys †Microsteiromys †Neosteiromys †Palaeosteiromys †Paradoxomys †Parasteiromys †Protosteiromys Chaetomyinae Chaetomys Erethizontinae Coendou Erethizon Octodontoidea Echimyidae †Cercomys †Maruchito †Paulacoutomys †Proclinodontomys †Willidewu †Adelphomyinae Adelphomys Deseadomys Paradelphomys Stichomys Xylechimys Capromyinae Capromyini Capromys Geocapromys Mesocapromys Mysateles †Hexolobodontini Hexolobodon †Isolobodontini Isolobodon Plagiodontini †Hyperplagiodontia Plagiodontia †Rhizoplagiodontia Carterodontinae Carterodon Echimyinae Echimyini Dactylomys Diplomys Echimys Isothrix Kannabateomys Lonchothrix Makalata Mesomys Olallamys Pattonomys Phyllomys Santamartamys Toromys Myocastorini Callistomys Hoplomys Myocastor Proechimys Thrichomys †Eumysopinae Acarechimys Chasichimys Eumysops Palaeoechimys Pampamys Pattersomys Protacaremys Protadelphomys Sallamys Euryzygomatomyinae Clyomys Euryzygomatomys Trinomys †Heteropsomyinae Boromys Brotomys Heteropsomys Puertoricomys †Heptaxodontidae Amblyrhiza Clidomys Elasmodontomys Quemisia Xaymaca Octodontidae Aconaemys Octodon Octodontomys Octomys Pipanacoctomys Spalacopus Tympanoctomys

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• Oligocene mammals of South America
• Miocene mammals of South America
• Hystricognath rodents
• Prehistoric rodent genera
• Fossil taxa described in 1897
• Taxa named by Florentino Ameghino
• Prehistoric mammal stubs