Green Mill Run micro shark teeth and others

[Anchiornis]

I finally finished out sorting my GMR matrix and I have a few small shark teeth and the like that I’m interested in!

 

1)

 

2)

 

3)

 

4) Reptile hopefully?

 

5) hybodont?

 

6)

 

7)

 

8)

 

9)

 

10)

 

11) I shared this with Dr. Shimada, who thinks its Cantioscyllium or Plicatoscyllium?

 

12) 

 

13) Ray crusher plate?

 

14) Catshark?

 

15)

 

16)

 

17)

 

18)

 

19)

 

20) 

 

 

 

 

 

 

 

 

Edited March 8 by Anchiornis

[Al Dente]

3 hours ago, Anchiornis said:

4) Reptile hopefully?

There’s a good chance this is reptile, could also be part of a fish tooth. A lot of your shark teeth are probably too worn to ID. #5 looks like a shark tooth root lobe. #7 could be Sphyrna or Rhizoprionodon. #13 is part of a Tilly bone.

[Anchiornis]

18 hours ago, Al Dente said:

There’s a good chance this is reptile, could also be part of a fish tooth. A lot of your shark teeth are probably too worn to ID. #5 looks like a shark tooth root lobe. #7 could be Sphyrna or Rhizoprionodon. #13 is part of a Tilly bone.

Hm, I hoped that shape would have helped with some? You can ignore the really worn tiny ones though. The ones that interest me the most are 8, 11, 14, 18, and 20, which are in pretty good condition I hope.

 

#5 (what I thought was a hybodont tooth, which you say is a root lobe) is pretty shiny, so I'd assume it has enamel.

 

Any way I can narrow down the identity of the potential reptile one?

Edited March 9 by Anchiornis