Neotherium mirum is an extinct species of basal walrus.[1][2] It was smaller than living forms and it did not have long tusks. Males were larger than females.

Neotherium
Temporal range: Middle Miocene
Scientific classification Edit this classification
Domain:Eukaryota
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Order:Carnivora
Clade:Pinnipedia
Family:Odobenidae
Genus:Neotherium
Kellogg, 1931
Species:
N. mirum
Binomial name
Neotherium mirum
Kellogg, 1931

References

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  1. ^ Naoki Kohno, Lawrence G. Barnes & Kiyoharu Hirota (1994). "Miocene fossil pinnipeds of the genera Prototaria and Neotherium (Carnivora; Otariidae; Imagotariinae) in the North Pacific Ocean: Evolution, relationships and distribution". The Island Arc. 3 (4): 285–308. Bibcode:1994IsArc...3..285K. doi:10.1111/j.1440-1738.1994.tb00117.x.
  2. ^ Berta, Annalisa. 2002b. Pinniped Evolution in Encyclopedia of Marine Mammals, eds. Perrin, William F., Bernd Würsig, and J. G. M. Thewissen. Academic Press.