Invertebrate fossil, GSA Mesozoic number 1518, from the GSA Mesozoic invertebrate paleontology collection. This specimen box contains 2 specimen(s) of the Oyster Ostrea congesta from the Cretaceous Niobrara Chalk Formation in Jewell County, KS, USA.
Summary
Invertebrate fossil, GSA Mesozoic number 1518, from the GSA Mesozoic invertebrate paleontology collection. This specimen box contains 2 specimen(s) of the Oyster Ostrea congesta from the Cretaceous Niobrara Chalk Formation in Jewell County, KS, USA.