	Authors	Year	Title
	Leonova	1983	Perrinitidy Pamira (Goniatitida). Paleontologicheskiy Zhurnal, 1983 (3): 39-53, fig.1-8, pl.4; Moskva.
	Leonova & Dmitriev	1989	Rannepermskie ammonoidei Yugo-Vostochnogo Pamira. Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 235: 1-198, fig.1-79, pl.1-16; Moskva.