Callorhinus Explained

Callorhinus is a genus of sea lion. It contains the living northern fur seal (Callorhinus ursinus) as well as the extinct Callorhinus gilmorei and an unnamed species, both from the Pliocene and very beginning of the Pleistocene.^[1]

Callorhinus may be a sister genus to the extinct giant otariid, Thalassoleon.^[2]

Notes and References

1. Book: Berta . Annalisa . The Rise of Marine Mammals: 50 Million Years of Evolution . 2017 . Johns Hopkins University Press . 9781421423265 . 98–100.
2. Berta . Annalisa . Deméré . Thomas A. . Callorhinus gilmorei n. sp., (Carnivora: Otariidae) from the San Diego Formation (Blancan) and its implications for otariid phylogeny. 1986. Transactions of the San Diego Society of Natural History. 21. 7. 111–126. Biodiversity Heritage Library. 5 July 2024.