Monday, October 4, 2021

Atrypa Brachiopod Fossil with Crystallized Lophophore

Check out this picture of an Atrypa (Hall, 1862) brachiopod fossil (note the two elliptical shapes which are feeding tubes or lophophore that have crystallized). The fossil was found in the Genshaw Formation at Alpena, Michigan USA. The creature lived Middle Devonian Period (Erian Stage).