Another Crinoid Grapnel

Submitted by: David Thompson
Taxon: Ancyrocrinus bulbosus
Submit date: 2007-03-08
Location (approximate): Thedford, Lambton, ON
Stratigraphy: Arkona Formation
Age: Erian (Middle Devonian)
Submitter notes: Here is another example of the crinoid holdfast/anchor/grapnel, Ancyrocrinus bulbosus, from the Thedford area of Ontario. This is from the Arkona Shale at the Microcycus layer. What is unusual is the way I found these two parts. The grapnel with it's four arms was found in a wash area one year. I had the extrordinary good luck to find the stem piece the following year! This almost never happens especially with small fossils requiring you to look on hands & knees. What is even more extraordinary, I was able to actually recognize the connection & pick it up!

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