Submitted by: David Thompson
Taxon: Heteroschisma alatum
Submit date: 2007-02-17
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Potter Farm Formation
Age: Erian (Middle Devonian)
Submitter notes: This is a nice large example of the Devonian Blastoid, Heteroschisma alatum, oral view with fingers for scale. As I was stepping across a ditch, this was directly in front of the toe of my boot, I called my companions to see it before I tried to pick this up as it was large & easily seen. I hoped it was & it did prove to be complete.