A fossil crinoid calyx about the size of grape. It needs some cleaning but appears to be at least 75% intact. This specimen is an index f...

This series of pictures are of two fossil specimens.  The strophodonta brachiopod shell fragments had colonies of Aulopora growing on t...

This fossil appears to be a pelecypod, not sure about its name though.  It was found in the Hamilton Group of Rensselaerville, New York....