Pycnodont Type Tooth or Coniasaurus?

[Thomas.Dodson]

I found this tooth (2.75 mm length) while sorting micro-matrix from Post Oak Creek in Texas (Turonian). I had originally hoped this might be a posterior Coniasaurus tooth based on the more conical tooth type and root but have since found in publications that some Pycnodont tooth forms closely overlap posterior Coniasaurus teeth in general morphology. My guess would now be some kind of less common type of Pycnodont tooth form (the flat types are common in the samples) but I wanted to see what others thought.

[ThePhysicist]

Ya, this looks like a fish, not Conisaurus. Coniasaurus teeth are more bulbous towards the base, tend to be "swept back," and don't have as smooth enamel. 

 

^ http://northtexasfossils.com/reptilia.htm

 

Here are a couple from POC that @JamieLynn and I found:

 

 

Edited January 16, 2022 by ThePhysicist