Submitted by: Michael Lask
Taxon: Koenenites cooperi
Submit date: 2024-02-11
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Squaw Bay Formation
Age: Senecan (Late Devonian)
Submitter notes: The larger one is 34 mm across. Collected by Patricia Rutkowski. Prepared by Scott Vergiels.

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