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Thursday, December 16, 2010

A couple more sharks from the Miocene (12mya) and Pliocene (2 mya), of Santa Cruz.

I collected these back in the early years of my engagement in paleontology.  Looking at these beautifully-adapted structures it is no wonder that sharks are such a successful line of creatures evolutionarily.

Santa Margarita Fm., perhaps Isurus.

Purisima Fm. Charcharodon, immaculately preserved.

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