1. Bulanov, V.V., A new leptorofid genus (Batrachosauria) from the Upper Tatarian of Eastern Europe, Paleontol. Zh., 2000, no. 3, pp. 82–89.
2. Bulanov, V.V., Evolution and systematics of seymouriamorph parareptiles, Paleontol. J. (Moscow), 2003, vol. 37, suppl. no. 1, pp. 1–105.
3. Golubev, V.K., Permian and Triassic chroniosuchians and biostratigraphy of the Upper Tatarian of Eastern Europe, based on tetrapods Tr. Paleontol. Inst. Ross. Akad. Nauk, 2000, vol. 276, pp. 1–175.
4. Ivakhnenko, M.F., Permian parareptiles of the USSR, Tr. Paleontol. Inst. Akad. Nauk SSSR, 1987, vol. 223, pp. 1–160.
5. Ivakhnenko, M.F., Golubev, V.K., Gubin, Yu.M., et al., Permian and Triassic tetrapods of Eastern Europe, Tr. Paleontol. Inst. Ross. Akad. Nauk, 1997, vol. 268, pp. 1–216.