Authors Year Title
Kullmann & Nikolaeva 1999 Ammonoid turnover at the Mid-Carboniferous boundary and the biostratigraphy of the early Upper Carboniferous.
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Popov 1975 Ammonoidea (Ammonoidei). In: Paleontologicheskii Atlas kamennougol'nykh otlozhenii Urala. [In Russian].
Trudy VNIGRI 383: 111-130, pls.35-44, Leningrad (Nedra).
Ruzhencev & Bogoslovskaya 1971b O semeistve Homoceratidae.
Paleontologicheskiy Zhurnal, 1971 (4): 17-34, fig.1-12, pl.3-4; Moskva.
Ruzhencev & Bogoslovskaya 1978 Namyurskiy etap v evolyutsii ammonodey. Pozdnenamyurskiye ammonoidei.
Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 167: 1-336, fig.1-108, pl.1-44; Moskva.