Authors Year Title
Lemosquet, Conrad & Manger 1985 Ammononoids. [In: M.Diaz, R.H.Wagner, C.F. Winkler Prins & L.F.Granados, eds., The Carboniferous of the World, 2.]
International Union of Geological Sciences Publication, 20: 367-372, pls.7-10, Madrid.
Ruzhencev & Bogoslovskaya 1971a Namiurskii etap v evoliutsii ammonodei. Rannenamiurskie ammonoidei.
Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 133: 1-382, fig.1-89, pl.1-40; Moskva.