At: International Journal of Plant Sciences, 162, 5 By: Pigg K. B., Wehr W. C., Ickert-Bond S. M.
journalAt: Bulletin of the Torrey Botanical Club, 81, 2 By: Hergert H. L., Phinney H. K.
journalAt: Revue d'Auvergne, 29, Mars-April By: Marty P.
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bookAt: Traité Paléobot., Paris, Masson, 2 By: Chaloner W. G.
journalAt: Nuovo giornale botanico Italiano, 1933, 40, 4 By: Chiarugi A.
bookAt: Anais II Congr. Lat.-Amer. Paleontol., Porto Alegre, Brazil, Editora Pallotti, 2 By: Torres T., Valenzuela E., Gonzalez I.
journalAt: Journal of the Botanical Research Institute of Texas, 15, 1 By: Poinar G. O., Chambers K. L., Vega F. E.
journalAt: Journal of the Botanical Research Institute of Texas, 13, 2 By: Poinar G. O., Chambers K. L.
journalAt: Palaeodiversity, 10, 1 By: Poinar G. O., Chambers K. L.