CRINOID CALYX

Submitted by: David Clark
Taxon: Gilbertsocrinus spinigerus
Submit date: 2009-11-19
Location (approximate): Arkona, Lambton, ON
Stratigraphy: Hungry Hollow Formation
Age: Erian (Middle Devonian)
Submitter notes: Surface collected in the Hungry Hollow mb. This crushed specimen may have an unusual 4th row of spines on the calyx. It mesures 15mm wide.

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