Authors	Year	Title
Chao	1965	The Permian ammonoid-bearing formations of South China. Scientia Sinica, 14 (12): 1813-1826, fig.1-4, pl.1-2; Beijing.
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.