| Esconites zelus Francis Creek Shale Will Co., Illinois Size: 6.8 X 5.6 cm concretion Only one half of concretion is available Price: $40 US ID number: f2699 | 
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| Esconites zelus Francis Creek Shale Will Co., Illinois Size: 6.8 X 5.6 cm concretion Only one half of concretion is available Price: $40 US ID number: f2699 |
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