Authors Year Title
Bogoslovskaya, Leonova & Shkolin 1995 The Carboniferous-Permian boundary and ammonoids from the Aidaralesh section, southern Urals.
Journal of Paleontology 69: 288-301, 12 figs., Lawrence, KS.
Kullmann 2005 Cephalopodenfunde aus der Waidegg-Formation (hohes Oberkarbon) der Karnischen Alpen (Österreich).
Jahrbuch der Geologischen Bundesanstalt, 145:71-78, 5 fig., 1 pl., Wien.
Leonova 1992 Ammonoidei. In: Leven,E.Ya., Leonova,T.B. & Dmitriev,V.Yu.: Perm' Darvaz-Zaalaiskoi zony Pamira: fuzulinidy, ammonoidei, stratigrafiya.
Trudy Paleontologicheskogo Instituta Rossiyskaya Akademiya Nauk, 253: 110-167, pl.29-32, figs.24-46; Moskva.
Nassichuk & Lin 1992 Ammonoids and Fusulinaceans near the Carboniferous-Permian boundary in the Canadian Arctic Archipelago
Permophiles, Subcomm.Permian Stratigraphy, 21:11-15, 1 tab.,