Authors	Year	Title
Bogoslovsky	1969	Devonskie ammonoidei. I. Agoniatity. Trudy paleont. Inst., 124: 1-341, fig.1-104, pl.1-29; Moskva.
Bogoslovsky	1971	Devonskie ammonoidei. II. Goniatity. Trudy paleont. Inst.Akad. Nauk SSSR, 127: 1-228, fig.1-67, pl.1-19; Moskva.
Yatskov & Kuz'min	1992	O sootnochenii kompleksov ammonoideiy i konodontov v nizhnefranskikh otlozheniyakh yuzhnogo Timana. (Comparisons of ammonoid and conodont assemblages in the lower Frasnian of South Timan). Byul. Mosk. Isp. Prip. Otd. Geol., 67: 85-90, fig.1-2, tab.1-2; Moskva.