Uncovering the Mystery of a Manitoulin Island Fossil

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A fossil discovered on Manitoulin Island in Central Ontario, part of the Canadian Shield, has sparked discussions about its classification. The fossil is identified as crinoids, a type of marine animal, with some contributors noting they possess many similar specimens. The conversation also touches on the age of these fossils, with some being nearly half a billion years old. One individual mentions having a unique brachiopod fossil that has not been identified in existing literature and expresses intent to contact the University of Kansas for further investigation.
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Found this fossil on Manitoulin Island in Central Ontario - Canadian Shield area. I'd be interested in knowing what epoch they're from.

I'm thinkin' it's tube worms? Graptolites?

Or rebar.
 

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I'll beat you to the punch:

Pennyplodicus c. 2006.

Sample worth about 1 cent.

Smart ass.
 
They're crinoids. I have tons of them. Some are quite large.

http://www.kgs.ku.edu/Extension/fossils/jpegs/crinoids.jpg"

http://www.kgs.ku.edu/Extension/fossils/crinoid.html"

http://www.cretaceousfossils.com/non_cretaceous/crinoids.htm"
 
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Evo said:
They're crinoids. I have tons of them. Some are quite large.
Thank you! I do think that's it.

Jeez, these little shapes I've got here are almost a half billion years old!
 
It's very cool, I have (somewhere) a disc full of pictures I've taken of my fossils. I have one that I haven't found identified anywhere. It falls into the brachiopod class, but has features never described or photographed, as far as I can tell, and I have searched EVERYTHING. One of these days I going to contact KU and see if anything like it has ever been found before.
 

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