Bottom of bivalve

Submitted by: David Thompson
Taxon: Grammysia nodocostata
Submit date: 2008-05-13
Location (approximate): Sylvania, Lucas, OH
Stratigraphy: Silica Formation
Age: Erian (Middle Devonian)
Submitter notes: This shows the thin layer on the bottom of the larger G. nodocostata, Although the previous photos identified the location of the Bivalves as Milan in Washtenaw county, this larger was found at Sylvania in Ohio. The bivalve is 2 1/4' long by 2' wide ( 5.5 X 5 cm).

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