Authors Year Title
Girty 1915 Fauna of the Wewoka Formation of Oklahoma.
Bulletin, U.S. Geological Survey, 544: 1-353, pl.1-35; Washington.
Librovitch 1939 Klass Golovonogie - Cephalopoda. Otriad Ammonoidea. In: Atlas rukovodiashchikh form iskopaemykh faun SSSR, tom 5. Srednii i verkhnii otdely kamennougol'noi sistemy.
Tsentralnii Nauchno-issledovatel'skii Geologo-razvedochnii Institut (TsNIGRI), p.134-141, fig.25-37, tabl.34, Leningrad.
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.
Popov 1999 Gzhelskie ammonoidei Karachatyra (Srednyaya Aziya).
Voprosy paleontologii, Sankt-Peterburgskii Gosudarstvennyi Universitet, 11: 75-87, 2 figs., 2 pls., Sankt-Peterburg.
Ruzhencev 1950 Verkhnekamennougol'nye ammonity Urala.
Trudy Paleont. Inst., Akad. Nauk SSSR, 29: 1-220, fig.1-84, pl.1-15; Moskva.
Shkolin 2001 Glava 5, Ammonoidei. Glava 12,  Ammonoidei.
In: Alekseev,A.S & Shik,S.M.,eds.,Srednii karbon Moskovskoi sineklizy (iuzhnaia chast'). Tom 2. Paleontologicheskaia kharakteristika,77-79,172-188,18 fig.,pl.35-36.
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.
Wagner-Gentis 1971 Some goniatites from Westphalian D (Upper Moscovian) strata in Northern Palencia, Spain.
Trab. geol., 4: 665-675, fig.1-7, pl.1-2; Oviedo.