CRINOID CALYX

Submitted by: Stan Hyne
Taxon: Synbathocrinus matutinus
Submit date: 2009-11-19
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Thunder Bay Formation
Age: Erian (Middle Devonian)
Submitter notes: A very nice calyx measuring 9.2mm tall.

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