So. Dakota Ammonites
Buried Treasure Fossils offers a large selection of top quality Ammonites for sale from Pierre Shale Fm., Pennington, So. Dakota, USA. These So. Dakota ammonites show exceptional external detail including pearly aragonite shell with some rainbow iredescence. Several specimens are still in their original matrix. Exceptional color. Great display and collection piece. Cretaceous age. Authenticity guaranteed.
- Hoploscaphites nodosus$325.00
A natural Hoploscaphites nodosus ammonite and a Nautilus (Eutrephoceras) with excellent preservation of the shell material. A December Fossil of the Month. This ammonite species exhibits big ribs with large tubercles (nodes). Both ammonites are nicely displayed on their original Pierre Shale matrix with a flat base. Matrix size is 4.5" x 2.5". This ammonite is from the upper Cretaceous, Pierre Shale Fm. of So. Dakota. Authenticity guaranteed. A fantastic display piece. Note - this specimen weighs 1.6 lbs. An international supplemental shipping charge will apply.
SD06 Size: 2-3/4" & 2"
Note - Adding 10 So. Dakota ammonites in December 2020. --> Link to So. Dakota Ammonites
Learn More - Hoploscaphites nebrascensis$195.00
Two natural Hoploscaphites nebrascensis ammonites with excellent preservation of the shell material. The ammonites are fully exposed and their shells exhibit some natural iridescence. This ammonite species exhibits big ribs with multiple rows of tubercles (nodes). This specimen is sits in an original Pierre Shale nodule with a flat base for a great display. This ammonite is from the upper Cretaceous, Pierre Shale Fm. of So. Dakota. Authenticity guaranteed. A fantastic display piece.
SD04 Size: 1-3/4"
Note - Adding 6 So. Dakota ammonites in August 2025. --> Link to So. Dakota Ammonites
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