	Authors	Year	Title
	Osnovy_Paleontologii	1962	Nadotriad Ammonoidea - Ammonoidei. Sistematicheskaia chast. [Bogoslovskyi,B.I., Librovich,L.S. & Ruzhentsev,V.E.] [see LIT1048] Osnovy Paleontologii, Molliuski - Golovonogie 1: 243-425, fig.1-187, pl.1-32; Moskva.
	Spath	1934	Catalogue of the fossil Cephalopoda in the British Museum (Natural History). Part IV. The Ammonoidea of the Trias. 1-521, fig.1-160, pl.1-18; London.