Odobenidae Temporal range: Middle Miocene to present

Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Carnivora
Clade:	Pinnipedia
Superfamily:	Otarioidea
Family:	Odobenidae Allen, 1880
Genera
Odobenus (walrus) (see text for more)

Odobenidae is a family of pinnipeds, of which the only extant species is the walrus (Odobenus rosmarus). In the past, however, the group was much more diverse, and includes more than a dozen fossil genera.

Taxonomy

All genera, except Odobenus, are extinct.^[1]

†Archaeodobenus
†Prototaria
†Proneotherium
†Nanodobenus
†Neotherium
†Imagotaria
†Kamtschatarctos
†Pelagiarctos
†Pontolis
†Pseudotaria
†Titanotaria
Clade Neodobenia^[2]
- †Gomphotaria
- Subfamily Dusignathinae
  - †Dusignathus
- Subfamily Odobeninae
  - †Aivukus
  - †Ontocetus
  - †Pliopedia
  - †Protodobenus
  - †Valenictus
  - Odobenus

In re-analyzing Pelagiarctos, Boessenecker et al. (2013) proposed the phylogenetic relationships of Odobenidae as follows (this analysis excluded Archaeodobenus, Titanotaria, Nanodobenus, and Pliopedia; and included Enaliarctos, Pteronarctos, Allodesmus, Desmatophoca, Callorhinus, Monachus, and Erignathus):^[3]

Enaliarctos emlongi †

Pteronarctos goedertae †

Desmatophocidae

	Allodesmus gracilis †

	Desmatophoca oregonensis †

Otariidae

Callorhinus ursinus

Phocidae

	Monachus monachus

	Erignathus barbatus

Imagotariinae

Prototaria primigenia †

Proneotherium regenningi †

Neotherium mirum †

Kamtschatarctos sinelnikovae †

Pseudotaria muramotoi †

	Pelagiarctos sp. †

	Imagotaria downsi †

Pontolis magnus †

Dusignathinae

	Dusignathus santacruzensis †

	Gomphotaria pugnax †

	Dusignathus seftoni †

Odobeninae

Aivukus cedrosensis †

Protodobenus japonicus †

Ontocetus †

	Valenictus chulavistensis †

	Odobenus rosmarus

References

†Magnotherium
Monachini	†Afrophoca †Auroraphoca †Messiphoca Monachus Neomonachus †Eomonachus †Noriphoca †Palmidophoca †Pliophoca †Pontophoca †Pristiphoca †Terranectes
Miroungini	†Callophoca Mirounga
Lobodontini	†Acrophoca †Australophoca †Hadrokirus †Homiphoca Hydrurga Leptonychotes Lobodon Ommatophoca †Piscophoca †Properiptychus †Virginiaphoca

Phocinae

†Cryptophoca †Frisiphoca †Kawas †Leptophoca †Monachopsis †Monotherium †Phocanella †Prophoca †Sarmatonectes
Erignathini	Erignathus †Platyphoca
Cystophorini	Cystophora †Miophoca †Pachyphoca
Phocini	†Batavipusa †Gryphoca Halichoerus Histriophoca †Nanophoca Pagophilus Phoca †Planopusa †Praepusa Pusa

Otarioidea	see below↓

Otarioidea

†Desmatophocidae

Allodesmus
Atopotarus
Desmatophoca
Eodesmus

Odobenidae

†Archaeodobenus
†Imagotaria
†Kamtschatarctos
†Nanodobenus
†Neotherium
†Osodobenus
†Pelagiarctos
†Pontolis
†Proneotherium
†Prototaria
†Pseudotaria
†Titanotaria

Neodobenia

†Dusignathinae	Dusignathus Gomphotaria
Odobeninae	†Aivukus Odobenus †Ontocetus †Pliopedia †Protodobenus †Valenictus

Panotariidae

†Eotaria

Otariidae

Callorhinae

Callorhinus
†Pithanotaria

Otariinae

†Thalassoleon
Zalophini	Eumetopias †Oriensarctos †Proterozetes Zalophus
Otariini	Arctocephalus Arctophoca †Hydrarctos Neophoca Otaria Phocarctos

Lists
List of pinnipeds List of fossil pinnipedimorphs

Taxon identifiers
Odobenidae	Wikidata: Q2292156 Wikispecies: Odobenidae ADW: Odobenidae BioLib: 2222 BOLD: 1361 CoL: DHQ EoL: 7668 EPPO: 1ODOBF Fauna Europaea: 12639 Fauna Europaea (new): 112a5f87-7c2e-4f2f-bb0d-6792c54bc4e5 GBIF: 9680 iNaturalist: 41764 IRMNG: 105036 ITIS: 180637 MSW: 14001022 NBN: NHMSYS0000376170 NCBI: 9705 Open Tree of Life: 95367 Paleobiology Database: 104975 WoRMS: 136975

Taxonomy

References

Further reading