Crinoid calyx

Submitted by: Joseph Koniecki
Taxon: Megistocrinus multidecoratus
Submit date: 2012-01-11
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Four Mile Dam Formation
Age: Erian (Middle Devonian)
Submitter notes: The specimen is 4.3 cm across.

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