Submitted by: Stan Hyne
Taxon: Heteroschisma sp.
Submit date: 2010-11-26
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Genshaw Formation
Age: Erian (Middle Devonian)
Submitter notes: A side view of a Heteroschisma blastoid from the Genshaw member. The specimen measures 9.25mm tall and 7.1mm in diameter. This photo was taken under a stereozoom microscope.