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It's December and I haven't really studied yet oops, so this may be a dumb question. Are we expected to be able to definitively ID things based on picture alone or will there be cases where we'll need other identifying info in order to accurately ID?

Are you from the AB that took 1st at MIT in fossils? I'm sorry about bombing Yale (Was it really that hard in comparison to MIT? Cause last years Yale test was not good. Too ez) lolol yeah. And like grypaea1635 said, it wasn't a particularly hard test (good job btw, see you at states ;) ). We thoug...

ok, thanks. Also, seeing another MA person here is really uncommon :D Are any of you from Acton-Boxborough? You took two places off us in Fossils :x ;) haha no, I'm from Boston Latin School and I got 10th at MIT... :p I'm from AB, and 10th isn't bad considering we just completely bombed Yale (overc...

gryphaea1635 wrote:Any tips on differentiating Equus from Mesohippus based on the skull only? What about the teeth?

The eye socket for Equus is higher on the skull than Mesohippus's. Equus teeth are also very flat, versus Mesohippus, which are crowned.

embokim wrote:Time period of platyceras?

Ordovician to Middle Permian, and most abundant in Devonian

How do you tell apart Hairy Whitetop and Whitetop? Just finding a legitimate picture of Lepidium appelianum is hard enough.