Fish Skin? North Sulphur River Texas Cretaceous

[JamieLynn]

Did I find a tiny piece of fish skin? I have been to NSR about half a dozen times and I can't for the life of me find a nice (or even not nice!) mosasaur tooth or vertebra, but I do manage to find some interesting things nonetheless and this is by far the most interesting thing I've found. It's tiny - about an inch (or 2.5 cm) but has the most interesting pattern. I'm assuming fish. ID will be appreciated..confirmation or whatever!

 

 

 

 

[Danielb]

Not sure what that is but it’s very interesting.

[Rockwood]

I think that's cartilage.

[Rockwood]

Here's an example.  TFF

[JamieLynn]

@Rockwood    ooooohhhhh  Thank you!! Yep....that's what it is! 

[DPS Ammonite]

Looks like shark cartilage as shown on educational website (no fossils bought or sold) by fossilguy.com.

 

See page on shark fossils:

https://www.fossilguy.com/gallery/vert/fish-shark/remnant.htm

 

Has anyone seen a shark nose, AKA rostral node, at NSR or other Texas site?

Edited August 8, 2023 by DPS Ammonite

[Al Dente]

I agree, prismatic cartilage.