[Phacops rana var. milleri STEWART, 1927] Here is a classical trilobite of the species Eldredgeops rana milleri from the famous Silica Shale of Ohio. | |||
Location: | Medusa Portland Cement Quarry, Silica, Ohio, USA | ||
Size trilobite: | about 34 mm wide | ||
Age: | Middle Devonian Silica Formation |