Hell Creek Tooth ID

[Sauronitholestes07]

2.7mm long “raptor” tooth found in Garfield County, Montana. Isn’t curved and has serrations. Possibly enat tooth.

[jpc]

Hmmmmm.... I wish I had an answer.  cool tooth.

[ThePhysicist]

An even smaller tooth than last time... same answer - indeterminate. What is an "enat"?

 

Closest match is "morphotype 6" described in a paper last year - small, basal constriction, and fine serrations that may not persist to the apex. The authors note others referred similar teeth to Richardoestesia isosceles, and that the denticles resemble those of ziphosuchian crocodyliforms.

^ Mohr SR, Acorn JH, Currie PJ (2023) Putative avian teeth from the Late Cretaceous of Alberta, Canada, are more likely from crocodilians. PLoS ONE 18(3): e0283581. https://doi.org/ 10.1371/journal.pone.0283581

[BirdsAreDinosaurs]

Reminds me a bit of Hadamasuchus teeth from the Kem Kem beds, so my best guess would also be crocodyliform .

[jpc]

10 hours ago, ThePhysicist said:

An even smaller tooth than last time... same answer - indeterminate. What is an "enat"?

 

Closest match is "morphotype 6" described in a paper last year - small, basal constriction, and fine serrations that may not persist to the apex. The authors note others referred similar teeth to Richardoestesia isosceles, and that the denticles resemble those of ziphosuchian crocodyliforms.

^ Mohr SR, Acorn JH, Currie PJ (2023) Putative avian teeth from the Late Cretaceous of Alberta, Canada, are more likely from crocodilians. PLoS ONE 18(3): e0283581. https://doi.org/ 10.1371/journal.pone.0283581

I assumed that 'enat' is (misspelled) short for enantiornithes.

 

Thanks for this paper.