Authors	Year	Title
Miller & Furnish	1940c	Permian ammonoids of the Guadalupe Mountain Region and adjacent areas. Special Papers of the Geological Society of America, 26: 1-242, fig.1-59, pl.1-44; Baltimore.
Miller	1945a	Some exceptional Permian ammonoids from West Texas. Journal of Paleontology, 19 (1): 14-21, fig.1-3, pl.6-8; Tulsa,Oklahoma.
White & Skorina	2000	A Type Catalog of Fossil Invertebrates (Mollusca: Ammonoidea) in the Yale Peabody Museum. Postilla 222, Peabody Museum of Natural History, Yale University, 1-73, New Haven, CT.