Odobenidae

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.

Odobenidae
Temporal range: Middle Miocene to present
Scientific classification Edit this 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)

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

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
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
  1. Berta A, Sumich J, Kovacs K (December 2005). Marine Mammals: Evolutionary Biology (2nd ed.). Elsevier/Academic Press. ISBN 978-0-08-048934-6.
  2. Magallanes I, Parham JF, Santos GP, Velez-Juarbe J (2018). "A new tuskless walrus from the Miocene of Orange County, California, with comments on the diversity and taxonomy of odobenids". PeerJ. 6: e5708. doi:10.7717/peerj.5708. PMC 6188011. PMID 30345169.
  3. Boessenecker RW, Churchill M (2013-01-16). "A reevaluation of the morphology, paleoecology, and phylogenetic relationships of the enigmatic walrus Pelagiarctos". PLOS ONE. 8 (1): e54311. Bibcode:2013PLoSO...854311B. doi:10.1371/journal.pone.0054311. PMC 3546998. PMID 23342129.

Further reading
  • Jouventin P, Cornet A (1981-01-29). "The Sociobiology of Pinnipeds". In Rosenblatt JS, Hinde RA, Beer C, Busnell MC (eds.). Advances in the Study of Behavior. Vol. 11. Academy Press. p. 122. ISBN 0-12-004511-7.
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