Cretaceous Jaw Section

[Rikache]

Hi there everyone!

 

I recently came across this beautiful jaw section earlier and I was wondering if there was anyone who could help me identify what animal it’s from.

 

The listing states that it was found in Powder River County, Montana, and is listed as a “reptile jaw”. At first glance through my untrained eye I believed it to be crocodilian in nature. But after a little research I now think it could be Taiidae (lizard).

 

Im still very new to this and I could obviously be entirely wrong so I’d greatly appreciate your guys’ feedback.

 

Thank you guys for all your help and for making me feel like a true part of this community. Cheers!

[IsaacTheFossilMan]

You are a true part of our community, brother! And it's not just our community, now it's yours, too

Using An Illustrated Guide to latest Cretaceous Vertebrate Microfossils of the Hell Creek Formation of Northeastern Montana, it looks almost definitely crocodilian, but, could be wrong!

[IsaacTheFossilMan]

If I may, I'll try for Borealosuchus sp.. 

 

Up until 1997, most teeth and jaws got lazily identified as Leidyosuchus sp., but then several species got reassigned to Borealosuchus, so it is all a bit messy! Would you be able to show a picture with a millimetre scale?