At: Bulletin of the University of Nebraska State Museum, 1, 8 By: Barbour E. H.
journalAt: Botanische Jahrbücher für Systematik, Pflanzengeshichte und Pflanzengeographie, 126, 2 By: Krings M., Butzmann R.
journalAt: Globe, 15, 3 By: Koriba K., Miki S.
journalAt: Palaeobiodiversity and Palaeoenvironments, 101, 3 By: Kvaček Z.
journalAt: Géologie méditerranéenne, 4, 2 By: Conrad M. A., Rioult M.
bookAt: Actas III Congr. Geol. Chil. 1982, Concepción, El Departamento de Geociencias, Universidad de Concepción, 1 By: Torres M., Godoy E.
journalAt: Estudios Geológicos, 52, 5-6 By: Álvarez Ramis C., Almendros Martín G., Lesiak M. A.
journalAt: Botanical Gazette, 143, 1 By: Mapes G.
journalAt: American Journal of Botany, 58, 4 By: Taylor T. N.
journalAt: International Journal of Plant Sciences, 169, 5 By: Benedict J. C., Pigg K. B., DeVore M. L.