Schipitzyn & Sosnovskaja 1984. [Camasiids of Synnig suite (central reef of Kuznetskij Alatau).] Khomentovskij, V.V.; Shenfil, V.Yu.; Yakshin, M.S.[Eds]. [Stratigraphy of the Late Precambrian and Early Palaeozoic. Central Siberia.], Institute of Geology & Geophysics, Acad. Sci. USSR, Novosibirsk, 1984: 117-132. Chapter pagination: 117-132