	Authors	Year	Title
	Ruzhencev & Ganelin	1971	Rukovodiashchie srednekamennougol'nye ammonoidei na Omolonskom massive. Paleontologicheskii Zhurnal, 1971 (1): 49-61, fig.1-4, pl.5; Moskva.
	Wang	1981	Carboniferous ammonoids from Eastern Xinjiang.[In Chinese, with English summary]. Acta Palaeontologica Sinica, 20 (5): 468-481, fig.1-12, pl.1,2; Beijing.