Pseudotaria muramotoi is an extinct walrus relative named by Kohno in 2006. Its fossils come from Hokkaido, Japan, from the same formation that yielded the walrus Archaeodobenus, so the two animals were contemporaries, and the Paleobiology Database dates the record to the Tortonian stage of the late Miocene, between about 11.6 and 7.2 million years ago. Archaeodobenus may have diverged from Pseudotaria in the western North Pacific, and Pseudotaria seems to have been the more basal of the two, meaning it sits nearer the base of the walrus family tree. The Global Biodiversity Information Facility lists it as an accepted species of the family Odobenidae.
Facts
Classification
System (Realm) Living or Extinct Conservation Status Connections
Child Taxon Of
Source Odobenidae (Wikipedia)
In Biome
Marine, Biomes Source List of fossil pinnipedimorphs (Wikipedia)
In the Other Atlases
Found In
Also in Geography Atlas: where this subject is found.
Source Archaeodobenus (Wikipedia)EvolutionQuote, Evolution
contemporary of the odobenid Pseudotaria from the same formation
Sources
1. List of fossil pinnipedimorphs (Wikipedia)
LeadQuote, Lead
Pinnipeds are marine mammals that evolved from arctoid carnivorans that includes seals, eared seals, and walruses.
2. Odobenidae (Wikipedia)
TaxonomyQuote, Taxonomy
All genera except Odobenus are extinct.
Archaeodobenus (Wikipedia)
EvolutionQuote, Evolution
contemporary of the odobenid Pseudotaria from the same formation
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