In between grant writing fury, I thought I'd take a moment to post a picture of a very odd fossil, and see if anyone could correctly identify it.
Some hints: this is from my field area, so it is marine, from central California, and approximately 6 million years old, and it belongs to a vertebrate. Also, it is very incomplete, but there are several features that distinguish it. So - now it is your job (if you so wish) to figure out what it is. And yes, '20 questions' is okay-ish.
Only one rule: folks who have already seen this can't give it away.