Trigonotarbid abdomen?

[EliasG]

Hello all!

I just recently purchased this specimen which was indicated to be from the Carboniferous, Bashkirian-Westphalian B, beds of Poland, dated to be Pennsylvanian at 314 mya. It was sold to me as a Trigonotarbid abdomen. The white square is 1 x 1 cm for scale. While I am no expert on arachnid orders, it appears to be lacking the segmented plates that surround the perimeter of the inner abdomen. Could this be part of some other segmented terrestrial arthropod, or could this feature be covered up by surrounded rock or have been damaged?

 

I will be posting pictures of the specimen below, please let me know if you have any questions or need further information to support a conclusive ID.

 

Excited to hear y'alls input!

[westcoast]

Not enough preserved to come to a conclusive ID is my opinion.

 

[Tidgy's Dad]

But I think trigonotarbid is a strong possibility.

And I agree that I don't think you'll get a conclusive ID.