Invertebrate fossil, GSA Mesozoic number 1670, from the GSA Mesozoic invertebrate paleontology collection. This specimen box contains 2 specimen(s) of the Gastropod Pyrgulifera humrosa from the Cretaceous Formation in Undetermined County, WY, USA.
Summary
Invertebrate fossil, GSA Mesozoic number 1670, from the GSA Mesozoic invertebrate paleontology collection. This specimen box contains 2 specimen(s) of the Gastropod Pyrgulifera humrosa from the Cretaceous Formation in Undetermined County, WY, USA.