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Is this an ankylosaur tooth?


gturner333

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I found this in some matrix from the Lance Formation in Wyoming and wondered if it is an ankylosaur tooth. The hash marks are 1mm. Thanks for any help. 

4EAAF0A0-BC20-417E-9275-2BDA5EF91394.jpeg

B89AA1F9-0404-4102-8E03-9F3903F84C9E.jpeg

14D04A75-FA06-434C-9CE1-05C00D676B84.jpeg

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That is a beauty.  I think  it is an ankylosaur tooth.  It has the cingulum (lower ridge seen in second photo) so I think that makes it ankylo not pachy.  

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Crankyjob21

Maybe, there are 4 ankylosaurus from the lance: ankylosaurus, Denversaurus, Edmontonia, and palaeoscincus. The last genus is dubious though. Large ceratopsians include torosaurus and triceratops. And the most Likely small plant eater is Thescelosaurus. Hope that helped a bit :)

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6 minutes ago, Crankyjob21 said:

Maybe, there are 4 ankylosaurus from the lance: ankylosaurus, Denversaurus, Edmontonia, and palaeoscincus. The last genus is dubious though. Large ceratopsians include torosaurus and triceratops. And the most Likely small plant eater is Thescelosaurus. Hope that helped a bit :)

I don't think ankylosaur teeth can be IDed to genus.  

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This is a Nodosauridae tooth and the only one described from the HC/Lance is Denversaurus schlessmani

Edit:

Goofup updated below :shakehead:

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1 hour ago, jpc said:

I don't think ankylosaur teeth can be IDed to genus. 

Agree but The only Ankylosaurini described from these formations is Ankylosaurus magniventris.  

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I take back my previous ID comment its Ankylosaurus magniventris just saw the center ridge.

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Thanks to all. I’ve processed many buckets of matrix from the Lance and Aguja and this is my first ankylosaurs. Finally!

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Congrats on a nice find! I love ankylosaurian fossils. So far I've only found a few, one Lance fm. nodosaur tooth (Denversaurus) & an Aguja nodosaur tooth (cf. Edmontonia) along with a couple osteoderms.

I agree with Troodon's ID of Ankylosaurus magniventris as my own nodosaur teeth have the bulbous base & cingulum but not ridge in the middle of the crown like yours.

 

Edited by PaleoNoel
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  • 1 year later...
Fossil Maniac
On 3/31/2021 at 11:26 AM, Troodon said:

Agree but The only Ankylosaurini described from these formations is Ankylosaurus magniventris.  

Hello! What do you mean by center ridge? I have a Nodosaur tooth that I possibly think is an Ankylosaur. I tried to take picture's but it was to small for the lense. The tooth is from the Judith River Formation of Hill county Montana.

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Fossil Maniac
1 hour ago, Troodon said:

Thanks! I'm 50-50 on if it's a ankylosaur. I wasn't able to get a good photo. I ordered a macro attachment for my camera. Should be here tommorow.

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Troodon

Looks like a Nodosaur tooth but do you have size and photo of opposite side.

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Fossil Maniac

The attachment didn't work on my camera so I just took the picture from the website but they didn't have a picture of the back side. I'll try and get a microscope and take a picture of that but untill then thanks for all the help!

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Fossil Maniac
15 hours ago, Troodon said:

Looks like a Nodosaur tooth but do you have size and photo of opposite side.

I managed to get a picture

1B790E9A-FF8A-44ED-8CB4-146DDD8EA454.jpeg

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Troodon

Okay thanks, its indeed a Nodosaur

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Fossil Maniac
On 5/26/2022 at 12:35 PM, Troodon said:

Okay thanks, its indeed a Nodosaur

Alright thank you.

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