At: Johns Hopkins University Studies in Geology, 12 By: Berry E. W.
journalAt: Torreya, 5, 2 By: Berry E. W.
journalAt: Current Science, 20, 5 By: Kaul K. N.
journalAt: Proceedings of the United States National Museum, 59, 2356 By: Berry E. W.
journalAt: Journal of the Washington Academy of Sciences, 19, 12 By: Berry E. W.
journalAt: Proceedings of the Linnean Society of London, 155, 1 By: Kaul K. N.
journalAt: Pollen et Spores, 6, 1 By: van Hoeken-Klinkenberg P. M. J.
journalAt: Leidse Geologische Mededeelingen, 30 By: van der Hammen T., Wymstra T. A.
bookAt: Palyn. Stud. Upper Los Cuervos & Mirador Form., Leiden, E. J. Brill By: González Guzmán A. E.
journalAt: Historical biology, 28, 5 By: Liu Z.-J., Wang X.