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Reptilia
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Insecta (2)
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Vermes (5)
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Mesozoic
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Cretaceous
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Dakota Formation (1)
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Lower Cretaceous
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Smartville Complex (1)
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Wingate Sandstone (1)
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Paleozoic
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Pennsylvanian
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Morrow Formation (1)
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Ellis Bay Formation (1)
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Ordovician
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Trentonian (2)
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Permian
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Brushy Canyon Formation (1)
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Kaibab Formation (1)
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Lower Permian
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Leonardian
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Clear Fork Group (1)
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Rotliegendes (1)
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Upper Permian
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Permian-Triassic boundary (1)
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Road River Formation (1)
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Sauk Sequence (1)
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Silurian
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Supai Formation (1)
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