Crinoid crowns

Submitted by: Joseph Koniecki
Taxon: Arthroacantha carpenteri, Poteriocrinus arkonensis
Submit date: 2008-11-07
Location (approximate): Arkona, Lambton, ON
Stratigraphy: Arkona Formation
Age: Erian (Middle Devonian)
Submitter notes: This is the bottom half of the plate with the two Arthrocantha crowns. On the bottom half are two additional crinoids.

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