1. Andrianov, V.N., Permskie i nekotorye kamennougol’nye ammonoidei Severo-Vostoka Azii (Permian and Some Carboniferous Ammonoids of Northeastern Asia), Novosibirsk: Nauka, 1985.
2. Archbold, N.W. and Dickins, J.M., Australian Phanerozoic Timescales. 6. A Standard for Permian System in Australia, Bur. Miner. Res., Austral. Rec. 1989/36, 1991, pp. 1–17.
3. Armstrong, I.D., Dear, I.F., and Runnegar, B., Permian Ammonoids from Eastern Australia. 1., Geol. Soc. Austral. 1967, vol. 14, part 1, pp. 87–98.
4. Bando, Y., Upper Permian and Lower Triassic Ammonoids from Abadeh, Central Iran, Mem. Fac. Educ. Kagawa Univ., 1979, part 2, vol. 29, no. 2, pp. 103–138.
5. Barskov, I.S., Morfogenez i ekogenez paleozoiskikh tsefalopod (Morphogenesis and Ecogenesis of Paleozoic Cephalopods), Moscow: Mosk. Gos. Univ., 1989.