Ammonoids from the Upper Mississippian Perdido Formation, Rest Spring Gulch, and the Upper Mississippian Rest Spring Shale, Death Valley National Park; all specimens are from Plate 2, and greatly magnified. Figured From United States Geological Survey Professional Paper 483-A California Carboniferous Cephalopods by Mackenzie Gordon Jr., 1964

Delepineros californicum, side view of the holotype specimen, Figures 21 on Plate 2.
 

Liroceras? sp. "front, side, and back views of an adolescent specimen." Figures 1, 2, and 3 on Plate 2.
 

Cravenoceras merriami, "side and front views of a specimen, probably from the base of the Rest Spring Shale, Rest Spring Gulch, Panamint Range, Death Valley National Park." Figures 11 and 12 on Plate 2.