Shark tooth hill

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On 4/5/2024 at 7:47 AM, Al Dente said:

On your A ray teeth, #1, 2, 6 and 7 look like Mobula. 3 and 5 are Mustelus. 4 looks like Raja.

 

Hi Al Dente,

 

I'd like to see more views of A4.  At first glance, I thought it was a Dasyatis tooth.  In the STH Bonebed you get variation in tooth size and shape (maybe more than one genus/more than a couple of species).  In Raja, which is a rare tooth and not just for its tiny size (usually around 1mm), the root is more like a single stalk that even widens toward the base.  It's hard to say, though, because I've seen only a few Raja teeth total from the STH Bonebed and the older Pyramid Hill Sand.  There might be more variation in Raja as well.

 

Jess