	Authors	Year	Title
	Lisitsyn	1909	Fauna "izvestnyaka Chernyshina", Likhvinskago i Kozel'skago uezdov, Kaluzhskoi gubernii. [Russian with French Résumé]. Ezhegodnik po Geologii i Mineralogii Rossii, 11 (4-5): 103-126, pl.3.
	Shkolin	2000	O nizhnekamennougol'nykh ammonoideyakh Podmoskovskogo Basseina. In: Zonal'nye podrazdeleniya karbona obshchei stratigraficheskoi shkaly Rossii. (In Russian). Materialy Vserossiiskogo Sovechaniya [Zonal Carboniferous subdivisions of the General Stratigraphic Scale of Russia], p. 104-105, Ufa (Gilem).
	Work	2002	The lower Mississippian (Kinderhookian) ammonoid Goniocyclus from the Hannibal Shale, Missouri. Journal of Paleontology, 76: 187-189, 3 fig., Lawrence,KS.