Crown and stem of large Crinoid

Submitted by: David Thompson
Taxon: Dolatocrinus stellifer
Submit date: 2011-05-04
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Thunder Bay Formation
Age: Erian (Middle Devonian)
Submitter notes: This is a large and pretty complete crown with stem in matrix. The stem is 2 3/4 inches long (7.5 cm). The whole piece is 8 1/2 inches long (21.5 cm), by 5 inches high (12.5 cm). The calyx is 4.1 cm wide and the longest arm is 3.4 cm long.

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