6hlkmIr ((FOSSIL TRILOBITE, CRYPTOLYTHUS BELLULUS)), $10 MINIMUM BID, Swatara Gap, Pennsylvania, 9.5 x 9 x 3 cm, Cabinet | |
Here is a specimen of the fossil trilobite, Cryptolythus bellulus from the Martinsburg Formation of the Ordovician age. The reverse fossil is part of the matrix and the positive came from that depression. The positive has been glued in place so as to not loose and also to shown the positive and reverse on one specimen. |