Authors Year Title
Böse 1919 The Permo-Carboniferous ammonoids of the Glass Mountains, west Texas, and their stratigraphical significance. [1919, inscribed 1917].
University of Texas Bulletin, 1762: 1-241, 11 pl.,  Austin,Texas.
Miller 1930 A new ammonoid fauna of Late Paleozoic age from Western Texas.
Journal of Paleontology, 4 (3): 383-412, pl.38,39; Tulsa, Oklahoma.
Tumanskaia 1963 Permskie ammonei tsentral'nogo Pamira i ikh stratigraficheskoe znachenie.
Otd. geol.-geogr. nauk Akad. Nauk SSSR: 1-119, fig.1-48, pl.A,B,1-23; Moskva.