4.4" Ordovician Cephalopod (Gonioceras) Section - Wisconsin

This is a 4.4" long example of Gonioceras sp. This fossil is part of an old collection from the Grand Detour Formation in Rock County, Wisconsin. It has been exposed from the rock it was found in. Gonioceras was one of very few flat cephalopod. This specimen has a few repaired cracks from extraction.

It comes with an acrylic display stand.