Authors Year Title
Miller & Faber 1892 Description of some Subcarboniferous and Carboniferous Cephalopoda.
Journal of the Cincinnati Society of natural history, 14: 164-168, pl.6;
Miller & Furnish 1940b Studies of Carboniferous ammonoids: parts 5-7.
Journal of Paleontology, 14 (6): 521-543, fig.1-7, pl.62-65; Tulsa, Okla.
Miller & Unklesbay 1942 The cephalopod fauna of the Conemaugh Series in Western Pennsylvania.
Annals of the Carnegie Museum, 29: 127-174, fig.1-5, pl.1-8; Pittsburgh, Pa.
Miller & Unklesbay 1943 The siphuncle in Late Paleozoic amonoids.
Journal of Paleontology, 17 (1): 1-25, fig.1-9, pl.1-5; Tulsa,Oklahoma.
Miller & Furnish 1958a Middle Pennsylvanian Schistoceratidae (Ammonoidea).
Journal of Paleontology, 32 (2): 253-268, fig.1-9, pl.33-34; Tulsa,Oklahoma.
Plummer & Scott 1937 Upper Paleozoic ammonites in Texas.
The geology of Texas, vol.3 pt.1, Bull. Texas. Univ., 3701: 1-516, fig.1-88, pl.1-41; Austin, Texas.
Ruzhencev 1950 Verkhnekamennougol'nye ammonity Urala.
Trudy Paleont. Inst., Akad. Nauk SSSR, 29: 1-220, fig.1-84, pl.1-15; Moskva.
Smith 1903 The Carboniferous Ammonoids of America.
Monography, U.S. geological Survey, 42: 1-211, pl.1-29; Washington.
Unklesbay 1962 Pennsylvanian Cephalopods of Oklahoma.
Bulletin of the Oklahoma Geological Survey, 96: 1-150, fig.1-16, tab.1-2, pl.1-19; Norman.