	Authors	Year	Title
	Kutygin	1999	O rannepermskikh somogolitakh (Ammonoidea) Verkhoian'ia. [In Russian, with English summary: On the Early Permian Somoholites (Ammonoidea) from the Verkhoyanks Region]. Paleontologicheskii Zhurnal, 1999 (5): 41-47, 5 figs., Moskva.