Blastoid

Submitted by: Mike Topor
Taxon: Hyperoblastus cummingsi
Submit date: 2008-03-30
Location (approximate): Arkona, Lambton, ON
Stratigraphy: Hungry Hollow Formation
Age: Erian (Middle Devonian)
Submitter notes: One of the rarer blastoids occurring in the Hungry Hollow Fm., Its distinctive features include striations and bumps on the radials as well as highly ornamented basals. The largest of the pictured specimens measures 16mm in height and the smallest is 14.8mm tall.

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