#fossilfriday The hefty jaw of the "killer" walrus Pelagiarctos, a sea lion-like pinniped from the early Miocene Topanga Formation of southern California. Our analysis suggested it was primarily adapted to eating fish. 🐬🦖🧪

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A large pale tan jaw with dark brown teeth, including a very large canine.

1 comments — live from bluesky

You can read our description of Pelagiarctos here: journals.plos.org/plosone/arti...

And our reevaluation of the feeding adaptations of Pelagiarctos using enamel ultrastructure here: link.springer.com/article/10.1...