	Authors	Year	Title
	Nikolaeva & Kullmann	1995	The Late Namurian genus Cancelloceras (Carboniferous Ammonoidea) and its distribution. Paläontologische Zeitschrift 69: 353-376, 8 figs., 1 table, Stuttgart
	Ruzhencev & Bogoslovskaya	1978	Namyurskiy etap v evolyutsii ammonodey. Pozdnenamyurskiye ammonoidei. Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 167: 1-336, fig.1-108, pl.1-44; Moskva.