Verdigris Formation
The Verdigris Formation is a geologic formation that outcrops in Illinois. It preserves fossils dating back to the Carboniferous period.
It is a limestone that was deposited after the Skinner Sandstone in central Oklahoma.
The Verdigris Formation is a geologic formation that outcrops in Illinois. It preserves fossils dating back to the Carboniferous period.
It is a limestone that was deposited after the Skinner Sandstone in central Oklahoma.