Another almost complete crinoid on matrix

Submitted by: David Thompson
Taxon: Aorocrinus cassedayi
Submit date: 2013-01-20
Location (approximate): Alpena, Alpena, MI
Stratigraphy: Thunder Bay Formation
Age: Erian (Middle Devonian)
Submitter notes: This nearly complete crinoid is disarticulated in parts of the lower stem and the arms have been scraped it appears. Some of the column may still be hidden under the Bryozoan fronds that make up much of the limestone of the matrix which is 7' by 5 1/4' or 18 cm by 13.5 cm. The crown itself is 1 1/2' or 3 cm high and the arms range from 1/2' or 1.2 cm to 1' or 2.5 cm wide.

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