🔎 UNIDENTIFIED Is this an Artifact, or just a rock? Are these bolt threads? I found this in landscaping rock. Can anyone help please?

Bobbarker3's

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Sep 22, 2023
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Benton County Iowa
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IMG_20230902_234840097.jpg
 

It isn't an artifact, it's a fossil. The "bolt threads" are part of Chrinoid stem. The Chrinoid was an ancient marine animal. The small round thing you see above the "threads" is also a Chrinoid stem fragment, but viewed from the end, rather than the side.
 

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Great find. Congratulations and thank for sharing.
 

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It isn't an artifact, it's a fossil. The "bolt threads" are part of Chrinoid stem. The Chrinoid was an ancient marine animal. The small round thing you see above the "threads" is also a Chrinoid stem fragment, but viewed from the end, rather than the side.
Very helpful indeed, thank you much. I'll certainly do some research now that I have a direction. I appreciate it, hope you have a good holiday.
 

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