Scale is in centimeters.
The one thing we know for sure is the fact that there is bone in this piece, but my husband seems to think it may also contain two skull fragments. This piece is also full of crystallizing through out it. Would appreciate any help with this piece. If you have an idea of what this is, please go to the Message Board with the fossil identification number and the information you want to contribute. If you have any references for the information, please provide that, as well.