Authors Year Title
Frech 1897- Lethaea geognostica oder Beschreibung und Abbildung der für die Gebirgs-Formationen bezeichnendsten Versteinerungen. I. Theil. Lethaea palaeozoica. 2. Band.
35pls, 6maps, 551figs.; Stuttgart.
Hind 1905 Notes on the homotaxial equivalents of the beds which immediately succeed the Carboniferous Limestone in the west of Ireland.
Proceedings of the Royal Irish Academy, 25 (sect. B): 93-116, pl.5-6; Dublin.
Kullmann & Nikolaeva 1999 Ammonoid turnover at the Mid-Carboniferous boundary and the biostratigraphy of the early Upper Carboniferous.
In: Rozanov,A.Yu. & Shevyrev,A.A. (eds.), Fossil cephalopods: Recent advances in their study, Ross.Akad.Nauk,Paleont.Inst.: 169-194, 21 figs., Moskva
Nikolaeva 1999 Ammonoidei iz Bogdanovskogo gorizonta (Srednii Karbon) Yuzhnogo Urala. [In Russian, with English summary: Ammonoids of the Bogdanovsky Horizon (Middle Carboniferous) of the South Urals].
Paleontologicheskii Zhurnal, 1999 (1): 12-19, 2 figs. 1 pl., Moskva.
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.
Titus & Manger 2001 Mid-Carboniferous ammonoid biostratigraphy, Southern Nye County, Nevada: Implications of the first North American Homoceras.
Journal of Paleontology, 75 (4, Supplement, Memoir 55): 1-31, 24 figs., Lawrence, KS.