| Dolatocrinus sp. Genshaw Fm. Alpena, Michigan Size: The crinoid calyx is about 3 cm across. There is a Pseudoatrypa brachiopod on the same rock. Price: $10 US | 
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| Dolatocrinus sp. Genshaw Fm. Alpena, Michigan Size: The crinoid calyx is about 3 cm across. There is a Pseudoatrypa brachiopod on the same rock. Price: $10 US |
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