Crinoid calyx

Submitted by: David Thompson
Taxon: Megistocrinus nodosus
Submit date: 2014-10-02
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Thunder Bay Formation
Age: Erian (Middle Devonian)
Submitter notes: This Megistocrinus shows some wear and tear with a number of nodes damaged. It is 3 cm thick by 5. cm wide.


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