Pelecypods

Submitted by: ummp invertebrate paleontology
Taxon: Plethomytitus sp.
Submit date: 2008-07-17
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Four Mile Dam Formation
Age: Erian (Middle Devonian)
Submitter notes: The large specimen on the left is 5 cm top to bottom.

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