Authors	Year	Title
Dzik	2002	Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland. Acta Palaeontologica Polonica, 47: 565-650, 57 fig., 7 tab., Warszawa.
House & Price	1985	New late Devonian genera and species of tornoceratid goniatites. Palaeontology, 28 (1): 159-188, fig.1-9, pl.16-20; London.
Matern	1931b	Die Goniatiten-Fauna der Schistes de Matagne in Belgien. Bulletin du Musée royal d`Histoire naturelle de Belgique, 7, 13: 1-15, fig.1,2; Bruxelles.