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A Couple of Cretaceous Shark teeth that need an ID


fossilsonwheels

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fossilsonwheels

I’m not really sure I’ll be to get an ID given the condition, size and difficulty in photographing them but I thought I’d try.

 

First tooth. Just over 1mm. This one is from Atco Formation micro mix. There was an Odontaspis on Elasmo that looked somewhat similar but I really don’t know. 

A9EFA974-6EE2-49C9-9886-7975BD99DEF9.jpeg

E674D97B-4CB7-4158-AB94-80664752A5E4.jpeg

6F0E0AAC-9E30-452C-8E4F-EEA911F7847D.jpeg

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fossilsonwheels

Another tiny, incomplete Atco Formation tooth. No clue. I think it’s Carcharhiniformes but I could be wrong about that. Less than 1mm. 

E071F52B-087C-4F1D-A71D-EA4F143493E1.jpeg

3C17D7BF-B00F-466B-B94C-EC0BF2F95E15.jpeg

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fossilsonwheels

This is one I can’t quite put an ID on from our Mesaverde micro matrix. I am pretty puzzled. I found a Columbusia on Elasmo that is the best match that I’ve so far. Open to any suggestions 

C62CCBA9-F7C6-4825-A3E6-B2B3AE4828F2.jpeg

3D9B5974-A675-4C88-ABB2-AB37FA034E3C.jpeg

EE91715E-4CD2-4ECB-86E9-5BCFA7236336.jpeg

CA5A8EA8-C729-49FD-9B62-3CA0CE904E6E.jpeg

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Al Dente

Have you tried this paper?

 

 

atco.JPG

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fossilsonwheels
13 hours ago, Al Dente said:

Have you tried this paper?

 

 

atco.JPG

Yes I based my ID’s on other teeth from that paper but I didn’t see anything I could match do those two teeth. 

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Al Dente
On 2/28/2021 at 10:25 PM, fossilsonwheels said:

This is one I can’t quite put an ID on from our Mesaverde micro matrix. I am pretty puzzled. I found a Columbusia on Elasmo that is the best match that I’ve so far. Open to any suggestions

I looked through some of my references and couldn’t get a good match. It’s an odd one.

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fossilsonwheels

Another Atco Formation tooth that I’m not real sure of the right identification. In looking at Hamms paper, I thought perhaps Ginglymostoma but I’m not sure. I don’t think Chiloscyllium as I’ve seen quite a few of those and this just doesn’t look like one to me. 

 

Best I could do on the pics. About 2mm. 

36A1224D-D7B6-4F69-99C0-C5F36A034476.jpeg

49652657-8793-4B9B-B71A-03AE0FA18798.jpeg

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siteseer
On 3/2/2021 at 1:50 AM, Al Dente said:

I looked through some of my references and couldn’t get a good match. It’s an odd one.

 

I think it's a Cantioscyllium tooth. 

 

Jess

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