Bychkov, Y. M.; Dagys, A. S.; Efimova, A. F.; Polubotko, I. V. (1976). Atlas triasovoy fauny i flory severo-vostoka SSSR [Atlas of the Triassic Fauna and Flora of Northeastern USSR]. NEDRA, Moskva, 267 pp. (incl. 72 pls.).
444883
Bychkov, Y. M.; Dagys, A. S.; Efimova, A. F.; Polubotko, I. V.
1976
Atlas triasovoy fauny i flory severo-vostoka SSSR [Atlas of the Triassic Fauna and Flora of Northeastern USSR]