| kml FOSSIL TRILOBITE, CRYPTOLYTHUS BELLUS, Martinsburg Formation, Swatara Gap, Pennsylvania, 13 x 8 x 3 cm, | |
 | Swatara Gap, a well known location, is now closed to collecting. Here is a bug with a body of 1 cm or 1.5 cm to the end of the spines. The matrix was 2 pieces and is glued just in back of the trilobite. Age is Upper Ordovician about 500 million years old. |
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