paleontology
Ordovician invertebrate fossils

A slab of Ordovician age limestone with a relatively large (for this area) unidentified fossil. It was found while hiking along a tributary to the Little Miami River in Warren County Ohio. The fossil is approximately 18cm long and 5cm in diameter. The surface is smooth and the exposed ends do not show any discernible internal structure. Any help identifying it would be appreciated. Arnheim or Waynesville Formation.

Fossil Collector: Geofowl

Location: Warren County, Ohio

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3 Responses to “Ohio Ordovician”

  1. Richard Benney says:

    I don’t think this is a fossil. I think it was squeezed into this shape when the limestone was still pliable. I’ve also found limestone forms like this along the Little Miami River and you can still see how the rock was pushed together to form this fossil like rock.

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  2. Rob Russell says:

    Looks like a cephalopod or burrow to me.

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  3. Solius Symbiosus says:

    I think that Richard is correct. Probably an example of a soft sediment deformation artifact known as a flow roll.

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