| Megistocrinus sp. Alpena Limestone Alpena, Michigan Size: About 3.6 cm across the tegmen. Note the very nice spines on the tegmen. Price: $50 US ID number: f1169 | 
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| Megistocrinus sp. Alpena Limestone Alpena, Michigan Size: About 3.6 cm across the tegmen. Note the very nice spines on the tegmen. Price: $50 US ID number: f1169 |
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