Invertebrate fossil, GSA Mesozoic number 1785, from the GSA Mesozoic invertebrate paleontology collection. This specimen box contains 1 specimen(s) of the Fossiliferous chunk Aporrhais biangulata from the Cretaceous Ft Pierre Group Formation in Undetermined County, MT, USA.
Summary
Invertebrate fossil, GSA Mesozoic number 1785, from the GSA Mesozoic invertebrate paleontology collection. This specimen box contains 1 specimen(s) of the Fossiliferous chunk Aporrhais biangulata from the Cretaceous Ft Pierre Group Formation in Undetermined County, MT, USA.