Devonian Cystoid

Submitted by: David Thompson
Taxon: Lipsanocystis traversensis
Submit date: 2007-02-19
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Thunder Bay Formation
Age: Erian (Middle Devonian)
Submitter notes: This Cystoid shows a considerable tail portion in addition to the body of this cystoid. The background is finely broken Bryzoan fronds. This is from the Thunder Bay Limestone near Partridge Point, Alpena. The U.S. 10 cent pc. is for scale. The body is 2 cm long with the additional tail just about 3 cm.

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