Ctenostreon
Species
Ctenostreon cf. C. gikshanensisMcLearn
Occurrence: Sliderock, Watton Canyon, and upper Leeds Creek Members of Twin Creek Limestone
Reference: Imlay, 1964; Imlay, 1967

Ctenostreon cf. C. gikshanensis
Photograph from Imlay, 1967
Ctenostreon sp.
Occurrence: Utah (unit unknown)
Reference: Imlay, 1964