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Found in driveway.


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I am not a specialist in any way. My son found this rock digging in our driveway. He is super excited and I am curious to see what the professionals identify it as.


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Welcome to TFF!

It looks like the print of a crinoid stalk / columnal.

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They became scarce after the permian extinction event, but are still in today's oceans, so without knowing where the rock came from it is hard to be sure of an age on this one.

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According to the Missouri Department of Natural Resources, the area which you live in is Tertiary/Quaternary, however, the majority of the state is Paleozoic, and the rocks might have been brought in from another location. 


Here's a helpful map for Missouri: http://dnr.mo.gov/pubs/pub2514.pdf

And a fact sheet about Crinoids: https://dnr.mo.gov/pubs/pub660.pdf

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