Blastoid

Submitted by: Mike Topor
Taxon: Hyperoblastus decipiens
Submit date: 2008-03-02
Location (approximate): Arkona, Lambton, ON
Stratigraphy: Arkona Formation
Age: Erian (Middle Devonian)
Submitter notes: These three, very large for the species, inflated blastoids from the shale are very high quality specimens. Most are found crushed. H. decipiens are often found retaining some of their delicate brachioles. The top row specimen measures 21mm high and 16mm in diameter. The bottom row left is 21.5mm high and 14.5mm in diameter and bottom right is 20mm high and 14.5mm in diameter.

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