Invertebrate fossil, GSA Paleozoic number 2042, from the GSA Paleozoic invertebrate paleontology collection. This specimen box contains 2 specimen(s) of the sponge Maclurea Bigsbyii from the Ordovician Cincinnati Group in WI, USA.
Summary
Invertebrate fossil, GSA Paleozoic number 2042, from the GSA Paleozoic invertebrate paleontology collection. This specimen box contains 2 specimen(s) of the sponge Maclurea Bigsbyii from the Ordovician Cincinnati Group in WI, USA.