	Authors	Year	Title
	Leonova	1981	Rannepermskie ammonoidei roda Cardiella na Pamire. Paleontologicheskiy Zhurnal, 1981 (2): 36-47, fig.1-7, pl.2; 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.
	Leonova & Boiko	2000	Novye dannye o sostave i rasprostranenii rannepermskogo roda Cardiella (Ammonoidea). [In Russian: New Data on the Taxonomy and Distribution of the Early Permian Genus Cardiella (Ammonoidea)]. Paleontologicheskii Zhurnal, 2000 (3): 31-35, 2 figs., pl.3, Moskva.