At: Materialy po geologii i poleznym iskopaemym Severo-Vostoka SSSR, 1975, 22 By: Dolmatova L. M.
journalAt: Saqartvelos SSR Metsnierebata Ak'ademiis moambe, 57, 2 By: Purceladze Kh. N.
journalAt: Doklady Akademii Nauk Ukrainskoi SSR, Series, B, geologicheskie, khimicheskie i biologicheskie nauki, 1979, 3 By: Snezhko A. M., Raskatova L. G.
journalAt: Doklady Akademii Nauk SSSR, 171, 4 By: Kolosov P. N.
journalAt: Ezhegodnik Vsesoyuznogo Paleontologicheskogo Obshchestva, 29 By: Fedotov V. V.
journalAt: Paleontologicheskii Zhurnal, 1966, 2 By: Iljinskaja I. A.
journalAt: Botanicheskii Zhurnal, 62, 7 By: Fedotov V. V.
journalAt: Paleontologicheskii Zhurnal, 1960, 2 By: Burakova A. T.
journalAt: Botanicheskii Zhurnal, 65, 1 By: Chelebaeva A. I.
journalAt: Izvestiya Kazanskogo Filiala Akademii Nauk SSSR, Series, Geologicheskikh nauk, 1950, 1 By: Antropov I. A.