View of individual coralite,

Submitted by: David Thompson
Taxon: Cystiphylloides petoskeyenes (potterenes?)
Submit date: 2008-05-12
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Potter Farm Formation
Age: Erian (Middle Devonian)
Submitter notes: This shows opening and internal structure of coral. This opening is 2' (5. cm) across.

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