| Megistocrinus nodosus Thunder Bay Fm. Alpena, Michigan Size: About 4.5 cm across the tegmen This specimen has a crack line with some pieces missing. There is all sorts of epifauna on the calyx. Price: $50 US ID number: fs781 | 
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| Megistocrinus nodosus Thunder Bay Fm. Alpena, Michigan Size: About 4.5 cm across the tegmen This specimen has a crack line with some pieces missing. There is all sorts of epifauna on the calyx. Price: $50 US ID number: fs781 |
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