Rare Crinoid

Submitted by: John Topor
Taxon: Cadiscocrinus southworthi
Submit date: 2007-03-12
Location (approximate): Arkona, Lambton, ON
Stratigraphy: Arkona Formation
Age: Erian (Middle Devonian)
Submitter notes: This crinoid named after a longtime collector from Thedford, Charlie Southworth, is very rare. The species was based on a single calyx that Charlie donated to a museum. This photo shows both a calyx and a small crown. The calyx measures 8mm in height and is 8mm wide at the base. The crown is 17mm high and 11mm wide.

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