	Authors	Year	Title
	Ruzhencev	1933	O nekotorykh nizhnepermskikh ammonoideyakh Aktyubinskogo rayona. Byulleten' Moskovskaya obshchestva ispytatelei prirody, otdelenie geologii, 11 (2): 164-180, fig.1-6, pl.4; Moskva.
	Ruzhencev	1956	Nizhnepermskiye ammonity Yuzhnogo Urala. II. Ammonity Artinskogo yarusa. Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 60: 1-275, fig.1-97, pl.1-39; Moskva.