CRINOID CALYX

Submitted by: Stan Hyne
Taxon: Gennaeocrinus sp.
Submit date: 2009-11-19
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Thunder Bay Formation
Age: Erian (Middle Devonian)
Submitter notes: A side view of a nice calyx measuring 15mm in diameter and 13mm high. The tegmen plates are missing.

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