At: Palaeobotanist, 1960, 9, 1-2 By: Navale G. K. B.
bookAt: Iskop. Tsvetk. Rast. SSSR, Leningrad, Izdatel'stvo Nauka, Leningradskoe otdelenie, 2 By: Iljinskaja I. A., Ablajev A. G.
journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 133, 1-3 By: Meyen S. V.
journalAt: Botanical Review, 76, 1 By: Manchester S. R., O’Leary E. L.
journalAt: American Journal of Botany, 96, 7 By: Stanich N. A., Rothwell G. W., Stockey R. A.
journalAt: Journal of the Botanical Research Institute of Texas, 10, 2 By: Chambers K. L., Poinar G. O.
bookAt: Phys. Desc. N. S. Wales Van Diemen's, London, Longman, Brown, Green and Longmans By: Strzelecki P. E.
journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 268, 4-6 By: Berthelin M., Vozenin-Serra C., Broutin J.
journalAt: Journal of the Faculty of Science of the Hokkaido University, Series, 4, Geology and mineralogy, 21, 4 By: Tanai T.
journalAt: International Journal of Plant Sciences, 171, 4 By: Herrera F., Manchester S. R., Jaramillo C. A., MacFadden B., da Silva-Caminha S. A.