Unknown Cretaceous Marine Bone possibly Pterosaur

[Huntlyfossils]

I found this small bone (about 5cm) in marine cretaceous material from NW Queensland, it is very thin and fragile. It looks very different from the common turtle bones i usually find in this location .Anyone else have thoughts?I have added some close up photos of the structure the total bone thickness is only about 1mm in the middle. Is this possibly pterosaur?

Edited June 14, 2021 by Huntlyfossils

[Huntlyfossils]

These are a few pictures of the solid end.

[M Harvey]

It's too small for Pterosaur.  Maybe bird?  They are rare but sometimes found in Cretaceous marine deposits.  i have never found one myself but am always looking.

[Huntlyfossils]

22 minutes ago, M Harvey said:

It's too small for Pterosaur.  Maybe bird?  They are rare but sometimes found in Cretaceous marine deposits.  i have never found one myself but am always looking.

Thanks for your input , yes some rare bird fossils have been found in this location as well as pterosaur bones. I have never found pterosaur or a bird fossil before so I'm unsure on what differences to look for in the fossils as both their bones structure are similar. The reason this fossil interested me was that it had a very different structure to most other marine fossils i have found at this location. 

[Rockwood]

1 hour ago, M Harvey said:

It's too small for Pterosaur. 

I don't believe so.

[jpc]

It is definitely not too small for a pterosaur.  They had small bones as well as big ones.  And there are smaller late K pterosaurs (although I am not familiar with the Australian faunas).   It is hard to make out any distinctive charcteristics on this, but you might look into both bird and pterosaur (and turtle) cervical vertebra.  That is the feeling I get form it.  

[Mike from North Queensland]

I suspect the bone is the end of a pterosaur metacarpal.

 

Mike

[Huntlyfossils]