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.
Ruzhencev 1949 Sistematika i evolyutsia semeystv Pronoritidae Frech i Medlicottiidae Karpinsky.
Trudy Palentologicheskogo Instituta Akademiya Nauk SSSR, 19: 1-206, fig.1-88, pl.1-17; Moskva.