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Are these crinoid arms?

Eastonian

By Eastonian
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Eastonian New Member

Eastonian

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Hi. I've spent the winter reviewing my finds from 2017. Here are two images. Initially I thought the radiating arms were those of a brachiopod, but I'm now having my doubts. Could they be crinoid arms? (The specimen in the top image is on the upper left corner.) I failed to include a measurement scale, but the top specimen would be covered by a penny, and the bottom by a nickel. They're tiny. Thoughts? (Paulding, Ohio; Middle Devonian; Silica Shale)

Crinoid arms.jpg

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Kane Regular Member

Kane

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I would say the top one is a bryozoan, and the lower one plications of a brachiopod.

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fifbrindacier Regular Member

fifbrindacier

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Hi, welcome :meganim::crab::tff:

Those are a little pecten or a brachiopod and what seems to be a kind of coral or bryozoan. The rounded thing might be a crinoid stem.

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Tidgy's Dad Regular Member

Tidgy's Dad

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Brachiopod ribs in both examples.

Nice bryozoans on both pieces too. 

The round disc on the upper photo is a crinoid columnal. 

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Herb Regular Member

Herb

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couple species of bryozoas and brachiopod plications

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abyssunder Regular Member

abyssunder

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I don't see crinoid arms. Brachiopod would be a good guess.

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