Invertebrate fossil, GSA Mesozoic number 1796, from the GSA Mesozoic invertebrate paleontology collection. This specimen box contains 1 specimen(s) of the Gastropod Anisomyon subovatus from the Cretaceous Ft Pierre Group Formation in Undetermined County, MT, USA.
Summary
Invertebrate fossil, GSA Mesozoic number 1796, from the GSA Mesozoic invertebrate paleontology collection. This specimen box contains 1 specimen(s) of the Gastropod Anisomyon subovatus from the Cretaceous Ft Pierre Group Formation in Undetermined County, MT, USA.