Crinoid Calyx

Submitted by: Mike Topor
Taxon: Ancyrocrinus bulbosus
Submit date: 2008-03-30
Location (approximate): Arkona, Lambton, ON
Stratigraphy: Arkona Formation
Age: Erian (Middle Devonian)
Submitter notes: Only three of these extremely rare crinoids are known. They may belong to A. bulbosus but further study is needed to determine that at the species level. The calyx measures 15mm x 11mm.

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