Unknown bone or fossil plant?

[nivek1969]

Hello all-

 

I may have posted asking about this piece before but cannot find the post here, so maybe it was another forum. Can someone help identify. I bought this along with another similar looking bone that was from a Mosasaurus here in Texas, though this smaller piece is darker in color and not from the same specimen. 

Hope someone can help. Thanks!

KP 

[DPS Ammonite]

The ridges on the piece, especially in the second photo, suggest a clam steinkern/cast from a razor clam. Similar shaped clams occur in Texas Cretaceous rocks. https://en.m.wikipedia.org/wiki/Razor_clam

 

 

Also see: http://www.thefossilforum.com/index.php?/topic/74930-help/&tab=comments#comment-789453

 

[Misha]

15 minutes ago, DPS Ammonite said:

The ridges on the piece, especially in the second photo, suggest a clam steinkern/cast from a razor clam. Similar shaped clams occur in Texas Cretaceous rocks. https://en.m.wikipedia.org/wiki/Razor_clam

 

 

Also see: http://www.thefossilforum.com/index.php?/topic/74930-help/&tab=comments#comment-789453

 

Are you sure that they would get this thick? From what I have seen they are fairly thin compared to what is seen on this one.

[Misha]

Could you take some pictures of the sides of the fossil, that would be very helpful and make it easier to identify.

[nivek1969]

These photos show all sides and I do not see many ridges, it's mostly smooth. Do you mean photos of each end? It's round as well. A rib bone maybe?

 

 

[abyssunder]

Maybe it's a poorly preserved Baculite?

[Misha]

39 minutes ago, nivek1969 said:

These photos show all sides and I do not see many ridges, it's mostly smooth. Do you mean photos of each end? It's round as well. A rib bone maybe?

 

 

Yeah that is what I meant, the word would not come to me in that moment though.

[Fossildude19]

Here is your other post.

 

I am not seeing any sutures to indicate baculite.

I'm thinking ironstone concretion on this one.  

[Auspex]

I'm stumped.
Is this a common preservation for aragonite in the NSR? How does calcite shell material from there look?

 

@garyc

 

 

[abyssunder]

I've never seen that previous topic, but I see that Garyc had the same idea. Suture lines may be visible only if the outer shell is eroded away in some level.
If not, the curved parallel ornamentation lines may be present.

 

 

picture from here