Invertebrate fossil sample, GSA Cenozoic number 17863. A fossil sample of the Oligocene echinoid , Arbacia aldrichi, from the geologic unit Chickasawhay Limestone?, collected from the county of Monroe, AL, USA.
Summary
Invertebrate fossil sample, GSA Cenozoic number 17863. A fossil sample of the Oligocene echinoid , Arbacia aldrichi, from the geologic unit Chickasawhay Limestone?, collected from the county of Monroe, AL, USA.