Blastoid Hyperoblastus americana (Barris, 1883)

Submitted by: Alex Fabian
Taxon: Hyperoblastus americana
Submit date: 2007-03-06
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Traverse Formation
Age: Erian (Middle Devonian)
Submitter notes: Here is a colony of blastoids occuring on a small lense. The lense is composed of disarticulated blastoid brachioles and stems. This preservation is unique to the Givetian of the Great Lakes region. (aka Hyperoblastus cooperi)

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