	Authors	Year	Title
	Calver & Ramsbottom	1961	Stratigraphical Palaeontology. In: J.R. Earp et al.: Geology of the Country around Clitheroe an Nelson. Memoir of the Geological Survey of Great Britain, Expl. one-inch Geol. Sheet 68, New Series: 174-207, pl.10,11; London.
	Korn	1988d	Die Goniatiten des Kulmplattenkalkes (Cephalopoda, Ammonoidea; Unterkarbon; Rheinisches Schiefergebirge). Geologie und Paläontologie in Westfalen, 11: 1-293, fig.1-88, pl.1-60; Münster.
	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.
	Kumpera	1971b	Faunistické lokality a prehled fauny Hradeckého souvrství (Svrchní Visé Moravskoslezshého Kulmu). - [English summery: Faunal localities and the outline of the Hradec Formation (Upper Viséan)]. Sbornik, Vysok.skol.banské,Ostrava, Sbornik, 17(2): 129-145, pl.1-5; Ostrava.Sbornik, Vysok.skol.banské,Ostrava,17 (1): 107-124, pl.1-5; Ostrava.