A natural Hoploscaphites brevis ammonite with exceptional preservation of the shell material. The ammonite shell exhibits fine ribs. This ammonite is from the upper Cretaceous, Pierre Shale Fm. of So. Dakota. Authenticity guaranteed. A wonderful display piece.
SD07 Size: 2"
Note - Adding 10 So. Dakota ammonites in December 2020. --> Link to So. Dakota Ammonites