Tooth - Theropod?

[Ruger9a]

Good afternoon folks.  I have a very small (5mm) tooth or partial tooth on matrix from the Lance Formation outside of Newcastle, Wyoming.  Is it a Theropod tooth?  It's in the left middle section of the matrix. 

[Pterygotus]

Kind of hard to tell. Do you have better photos ?
 

 

@Troodon

[Ruger9a]

Will "try" using my micro camera shortly.

[Troodon]

I dont see serrations on your 3 photo, the sharpest, so would lean toward croc possibly fish.  The carina looks pretty sharpe and smooth.  However if your micro photos can show some then its a different call.

[jpc]

It looks like the amiid fish (a bowfin) from the Lance.  Thick clear enamel that is sorta see-through, and distinct ridges on either side... Melvius is the genus.

[Ruger9a]

Here we go.  These are the Micro photos.  Yes, I know I'm a poor photographer, sorry.

[Ruger9a]

3 hours ago, jpc said:

It looks like the amiid fish (a bowfin) from the Lance.  Thick clear enamel that is sorta see-through, and distinct ridges on either side... Melvius is the genus.

Thanks JPC.  I didn't see your response before posting these photos.  Looks to me like the clearness and distinct ridges are both present.  There was also a small dark brown tooth with serrated edges on the matrix, but it fell apart with I tried to prep it.

[Ruger9a]

4 hours ago, Troodon said:

I dont see serrations on your 3 photo, the sharpest, so would lean toward croc possibly fish.  The carina looks pretty sharpe and smooth.  However if your micro photos can show some then its a different call.

Thanks Troodon.  Don't know if the micro photos will make much of a difference, but I did try.

[Troodon]

Definitely fish and like jpc indicated looks like Melvius

[Ruger9a]

1 minute ago, Troodon said:

Definitely fish and like jpc indicated looks like Melvius

Thank you.