Authors Year Title
Bouckaert & Herbst 1960 Zur Gliederung des Namurs im Aachener Gebiet.
Fortschritte in der Geologie von Rheinland und Westfalen, 3,1: 369-384, fig.1-3, pl.1-3; Krefeld.
Korejwo 1969 Stratigraphy and palaeogeography of the Namurian in the Polish Lowland.
Acta Geologica Polonica, 19 (4): 609-709, fig.1-6, chart 1-7, pl.1-46; Warszawa.
Korejwo 1986 Biostratigraphy of the Carboniferous deposits of the Swidnik blocks (Lublin Coal Basin).
Acta Geologica Polonica, 36 (4): 337-346, tab.1-2, pl.1-37; Warszawa.
Korn 1997 The Palaeozoic ammonoids of the South Portuguese Zone.
Memórias do Instituto geológico e Mineiro 33: 1-131, 69 text-figs., 16 pls., Lisboa.
Kulagina, Pazukhin & Nikolaeva 2009 Serpukhovian and Bashkirian Bioherm Fazies of the Kizil Formation in the South Urals. E.I.Kulagina, V.N.Pazukhin, S.V.Nikolaeva,N.N.Kochetowa,G.F.Zainakaeva,B.Gibshman & V.A.Konovalova.
Proceedings Intern.Scientific Conference Ufa-Sibai, 2009: 78-96, 6 fig., 3 pl., Ufa,
Nassichuk 1975 Carboniferous ammonoids and stratigraphy in the Canadian Arctic Archipelago.
Bulletin of the Geological Survey of Canada, 237: 1-240, fig.1-57, tab.1-33, pl.1-18; Ottawa.
Ruan & Zhou 1987 Carboniferous cephalopods in Ningxia Hui Autonomous Region. [In Chinese, with Engl. summary].
Namurian Strata and Fossils of Ningxia, China: 55-177, 78 text-figs., 15 pls., Nanjing.
Zheng & Chen 1979 [Upper Paleozoic Fossils.] In: Fossil Atlas of Northwest China, Qinghai. [In Chinese.]
Fossil Atlas of Northwest China, Qinghai, volume 2: 10-18, pl.1-2.