Authors	Year	Title
Archiac & Verneuil	1842	On the Fossils of the Older Deposits in the Rhenish Provinces; preceded by a general Survey of the Fauna of the Palaeozoic Rocks, and folowed by a Tabular List of the Organic Remains of the Devonian Transactions of the geological Society of London, (2) 6: 303-410, pl.25-38; London.
Holzapfel	1882	Die Goniatitenkalke von Adorf in Waldeck. Palaeontographica, n.F., 8: 225-261, pl.1-6; Berlin.
Petter	1959	Goniatites dévoniennes du Sahara. Publ. Serv. Carte géol. Algérie, n.s., Paléont., 2: 1-313, fig.1-58, pl.1-26; Alger.