Period: Rochaster Shale, Wenlockian, middle Silurian
Find Spot: Middleport, New York State, USA
Size: Fossil 34 mm
Matrix approx. 88 x 44 mm
Age: approx. 426mya
A very nice Silurian Trilobite of the kind Calymne niagararensis (HALL), on its original matrix.