Authors	Year	Title
Diener	1912	The Trias of the Himálayas. Memoirs of the Geological Survey of India, 36 (3): 1-176, 12 figs., Calcutta.
Furnish	1966	Ammonoids of the Upper Permian Cyclolobus-Zone. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 125: 265-296, 4 figs., 2 tabl., Stuttgart
Kummel	1973	Lower Triassic (Scythian) Molluscs. In: Hallam,A., ed.: Atlas of Palaeobiogeography, 225-233, 4 fig., 3 pl., Amsterdam (Elsevier).