At: Neues Jahrbuch für Geologie und Paläontologie Monatshefte, 1955, 8 By: Gothan W., Schonefeld W.
journalAt: Sborník Přírodovědecké Společnosti v Moravské Ostravě, 1926-1928, 4 By: Trapl S.
journalAt: American Journal of Botany, 35, 6 By: Levittan E. D., Barghoorn E. S.
journalAt: Acta Palaeobotanica, 58, 1 By: Manchester S. R., Balmaki B.
journalAt: Rapport Grønlands Geologiske Undersøgelse, 137 By: Peel J. S.
journalAt: Tertiary research, 9, 1-4 By: Friis E. M.
journalAt: Materialy po geologii i poleznym iskopaemym Dal'nego Vostoka, 29 By: Eliashevich M. K.
journalAt: Review of Palaeobotany and Palynology, 122, 3-4 By: Dettmann M. E., Clifford H. T.
journalAt: Anais da Academia Brasileira de Ciências, 1959, 31, 4 By: Sommer F. W.
bookAt: Paleontol. Paraná, Curitiba (Paraná, Brasil), Comissão de Comemorações de Centenário do Paraná By: Kräusel R.