| Calymene breviceps Waldron Shale Shelby Co., Indiana Size: Trilobite is 0.9 cm across the cephalon Price: $10 US ID number: fs761 | 
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| Calymene breviceps Waldron Shale Shelby Co., Indiana Size: Trilobite is 0.9 cm across the cephalon Price: $10 US ID number: fs761 |
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