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It's pretty obvious to me it's a fossil tooth: but from what? Kiowa formation and Albian. Approximately 1.1cm long.

 

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On 6/7/2020 at 1:55 AM, Pemphix said:

Reminds a Mosasaurus dekayi-tooth fragment - if it is not a shell-fragment of something (difficult to determine from the photos):

https://www.cretaceousatlas.org/species/

 

 

 Assuming it's not a shell fragment; what about the possibility of it being from plesiosaur, pliosaur, crocodilian, or fish such as Enchodus?

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If it's from the albian it's not a mosasaur. Definitely reptile of some kind, maybe plesiosaur or crocodile, hard to tell though.

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Looks like a Marine tooth, here us a faunal list of vertebrates found in the Kiowa Fm its old 1970.  One approach is to contact the author.

Screenshot_20200611-163008.thumb.jpg.5fe6e8589d4208c5e5695b7daf31f986.jpg

 

Paleoecology and paleontology of the Lower Cretaceous Kiowa Formation, Kansas

Robert W. J. Scott Published 1970

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On 6/11/2020 at 5:51 PM, PaleoNoel said:

If it's from the albian it's not a mosasaur. Definitely reptile of some kind, maybe plesiosaur or crocodile, hard to tell though.

 

On 6/11/2020 at 6:35 PM, Troodon said:

Looks like a Marine tooth, here us a faunal list of vertebrates found in the Kiowa Fm its old 1970.  One approach is to contact the author.

Screenshot_20200611-163008.thumb.jpg.5fe6e8589d4208c5e5695b7daf31f986.jpg

 

Paleoecology and paleontology of the Lower Cretaceous Kiowa Formation, Kansas

Robert W. J. Scott Published 1970


Troodon, it was one of a couple papers on Kiowa fm that I have read so far. I still have several saved to my computer that I have not read yet.

Troodon and PaleoNoel, it seem to me that plesiosaur tooth have numerous, smaller but more prominent ridges running along the tooth while crocodile tooth have fewer, larger and less prominent ridges running along the tooth.

 

Plesiosaur teeth:

 

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Credit to Oceans of Kansas, "Kansas Plesiosaurs".

 

Crocodile teeth:

 

5ee44d50cc3f0_Kiowacrocodiliantooth.jpg.7f838ff24e650eab034b07965893ef73.jpg

5ee44d5d959ce_Kiowacrocodiliantooth2.jpg.1ba1bc17b4d55ff6881c1fe69142cc4d.jpg

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Credit to Oceans of Kansas, "Kansas Crocodiles".

 

 

 

Based on these pictures from Oceans of Kansas, I'm leaning more to crocodile because of its similarity. What do you think?  Troodon, you're right, I need to contact the author and also Paleontologist Dr. Mike Everhart. 

 

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Could definitely be Crocodilian a few have been described.  Forgot about Mike but he would be a great contact, I would try him first.

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  • 1 year later...

I realise this is somewhat of an older one, and may be the mystery has already been solved by now. But I agree this doesn't look plesiosaurian (sensu lato), as the tooth has carinae, and plesiosaurian teeth at most have apicobasal ridges, but never combined with the mild compression that seems to be visible here. Dating aside, the ribbing evidenced here is also not something you'd commonly see on mosasaur teeth, so for me this is a clear crocodilian tooth. Hard to say what kind without a species list available, though...

'There's nothing like millions of years of really frustrating trial and error to give a species moral fibre and, in some cases, backbone' -- Terry Pratchett

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