Who’s Tooth? Volume 2: With Extra Teeth!

[musicnfossils]

Found lots of teeth today, here’s some I need a little help with as I’ve never found these before. I think one is a troodontid, one is maybe dromaeosaur, and the other I have no idea. (Apologies for the quality, my phone isn’t good macro photography)  Dinosaur Park Fm

Edited June 28, 2021 by musicnfossils
Forgot to mention the formation

[ThePhysicist]

Cool teeth! First one looks Troodontid cf. Pectinodon? Second is Dromaeosaurid if the mesial serrations are different from the distal ones, could be Saurornitholestes? Not sure one the last one, if it's a tooth.

 

@Troodon

[Runner64]

52 minutes ago, ThePhysicist said:

Cool teeth! First one looks Troodontid cf. Pectinodon? Second is Dromaeosaurid if the mesial serrations are different from the distal ones, could be Saurornitholestes? Not sure one the last one, if it's a tooth.

 

@Troodon

I agree. Last may be an ankylosaurid.

[Guns]

Great finds!!  

[musicnfossils]

2 hours ago, ThePhysicist said:

Cool teeth! First one looks Troodontid cf. Pectinodon? Second is Dromaeosaurid if the mesial serrations are different from the distal ones, could be Saurornitholestes? Not sure one the last one, if it's a tooth.

 

@Troodon

thank you! The serrations are different, yes, so I suppose that confirms it as dromaeosaurid. I’m almost positive the last one is a tooth, I’ll try to get better pictures with my dslr. Crossing my fingers that it’s ankylosaurid as I don’t have one of those yet. 

[Troodon]

Nice indeterminate Troodontid anterior tooth, there are two species in DPF (Stenonychosaurus and Latenivenatrix) but you will not be able to differentiate between the two.  Not a Pectinodon.

Might be one of the side premaxillary teeth.

 

The other tooth would need info to try to ID it.  Size, serration count.  Sharper photos a closeups of serrations.  View of base and mesial carina.  Just an fyi Tyrannosaurids also can have differences in serration density.

 

That last one might be a ceratopsian spitter, not getting Nodosaur vibe but need size and additional photos to get a better look.

[musicnfossils]

Got some (hopefully) better photos. Sorry I don’t have anything better to more accurately show size I lost my measuring tape so this nickel will have to work. Really starting to think the possible dromaeosaurid tooth is in fact dromaeosaurid, I don’t know if this means anything but I compared it to an actual juvenile tyrannosaurid tooth I have and the difference is night & day. The dromaeosaurid is very flat whereas the tyrannosaurid is very thick, and the curvature of the tyranno tooth is way different as well. Photos of the herbivore tooth here as well. 
 

 

[musicnfossils]

Forgot a pic of the base, took extra serration photos as well. This sucker is so small that my phone doesn’t know what the heck it’s supposed to focus on. 
 

 

[Troodon]

That Tyrannosaurid tooth in your second photo looks like a premaxillary and would be thicker just because of position.   Lateral teeth are more compressed like the tooth besides it.  

 

I thought the theropod tooth might be Saurornitholestes but after getting a better look at the base cross-section, mesial carina and denticles which are chisel-shaped, all of that would say either Dromaeosaurus or a Tyrannosaurid.  So will need a serration count midline of each carina.  Like the count it to be 2 to 3 mm wide.  That will determine if its a Dromaeosaurid.

 

The photos of your other specimen surprised me,  Im not sure what it is.  Can you take a photo from the top looking down and one straight in by that gap. Want to get a better view.