Pacificotaria
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Extinct genus of basal pinniped
| Pacificotaria Temporal range: Early-middle Miocene
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|---|---|
| Scientific classification Edit this classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Infraclass: | Placentalia |
| Order: | Carnivora |
| Clade: | Pinnipedimorpha |
| Clade: | Pinnipediformes |
| Genus: | †Pacificotaria Barnes, 1992 |
| Species: | †P. hadromma
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| Binomial name | |
| †Pacificotaria hadromma Barnes, 1992
| |
Pacificotaria is an extinct genus of basal pinnipediform that lived in Oregon during the early to middle Miocene epoch.[1] The only species of this genus is Pacificotaria hadromma making it a monotypic genus.[2]
It is a possible junior synonym of Pteronarctos . However, it is distinguished from its protruding orbits that is positioned further anteriorly on the cranium, its larger bony nares, a robust rostrum, a vaulted palate, and straighter upper cheek tooth rows.[1]
References
[edit ]- ^ a b Berta, Annalisa; Churchill, Morgan; Boessenecker, Robert W. (2018年05月30日). "The Origin and Evolutionary Biology of Pinnipeds: Seals, Sea Lions, and Walruses". Annual Review of Earth and Planetary Sciences. 46: 203–228. Bibcode:2018AREPS..46..203B. doi:10.1146/annurev-earth-082517-010009. ISSN 0084-6597.
- ^ "Pacificotaria Barnes, 1992". www.gbif.org. Retrieved 2025年12月17日.