Bivalvia

@Jeffrey P does this look like a match for this one from your collection? Didn't see an obvious match in the field guide
 

15 hours ago, bockryan said:

@Jeffrey P does this look like a match for this one from your collection? Didn't see an obvious match in the field guide
 

 

Yours looks more like Nuculites oblongatus, but I'm not sure. I'd have to see it my hand to be more certain. Good luck!

Cropped, rotated, enlarged, and brightened: