''Callorhinus gilmorei'' is an extinct species of fur seal that lived in

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

and western

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

during the Pliocene and

Early Pleistocene The Early Pleistocene is an unofficial sub-epoch in the international geologic timescale in chronostratigraphy, being the earliest division of the Pleistocene Epoch within the ongoing Quaternary Period. It is currently estimated to span the time ...

. ''Callorhinus gilmorei'' was similar to its close relative, the living northern fur seal. It mainly differed in having more primitive dental features, such as double-rooted cheek teeth.

References

{{Taxonbar, from=Q108422524 Pliocene pinnipeds Pliocene mammals of North America Pliocene mammals of Asia Prehistoric pinnipeds of North America Mammals described in 1986