Blastoid

Submitted by: Stan Hyne
Taxon: Placoblastus sp.
Submit date: 2008-03-13
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Alpena Formation
Age: Erian (Middle Devonian)
Submitter notes: This blastoid theca measures 36mm high x 23mm in diameter.

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