Crinoid Crown

Submitted by: Mike Topor
Taxon: Corocrinus(?) calypso
Submit date: 2007-02-18
Location (approximate): Arkona, Lambton, ON
Stratigraphy: Arkona Formation
Age: Erian (Middle Devonian)
Submitter notes: Corocrinus is the second most common crinoid in the formation next to Arthroacantha. This specimen shows the arm structure. The plates of the calyx are difficult to see because of pyrite. The crown measures 45mm high and 55mm wide.

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