Blastoid

Submitted by: John Topor
Taxon: Hyperoblastus reimanni
Submit date: 2009-02-04
Location (approximate): Milan, Washtenaw, MI
Stratigraphy: Silica Formation
Age: Erian (Middle Devonian)
Submitter notes: This rare blastoid is found in units 7, 13 & 14 of the Silica quarries. In old material collected in unit 13 it was more common and could sometimes be found with brachioles. This specimen measures 11.9mm X 9.1mm and is considered large.

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