Eocephalites
Species
Eocephalites primus Imlay, 1967
Occurrence: upper Sliderock Member of Twin Creek Limestone
Reference: Imlay, 1967
Eocephalites? sp. undet. A
Occurrence: upper 25–30 feet of Sliderock Member of Twin Creek Limestone
Reference: Imlay, 1967
Eocephalites? sp. undet. B
Occurrence: upper Sliderock Member of Twin Creek Limestone
Reference: Imlay, 1967
Eocephalites? sp. undet. C
Occurrence: upper Sliderock Member of Twin Creek Limestone
Reference: Imlay, 1967