	Authors	Year	Title
	Korn	1993	The ammonoid faunal change near the Devonian-Carboniferous boundary. Annales de la Societé géologique de Belgique, 115 (2): 581-593, fig.1-13; Bruxelles.
	Korn & Weyer	2023	The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany) European Journal of Taxonomy, 882: 1–230