	Authors	Year	Title
	Becker & Weyer	2004	Bartzschiceras n. gen. (Ammonoidea) from the Lower Tournaisian of Southern France. Mitteilungen des Geologisch-Paläontologischen Instituts der Universität Hamburg, 88: 11-36, 21 fig., 1 tab.,Hamburg.
	Korn	2005	Carboniferous ammonoid stratigraphy based on poorly preserved material - a discussion of BECKER & WEYER (2004), Mitteilungen des Geologisch-Paläontologischen Institus der Universität Hamburg, 89:49-54, Fig.1.
	Korn & Feist	2007	Early Carboniferous ammonoid faunas and stratigraphy of the Montagne Noire (France). Fossil Record 10 (2) (2007): 99-124, 20 fig.