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Studies in Neotropical Paleobotany. IX. The Pliocene Communities of Panama-Angiosperms (Dicots)

Alan Graham
Annals of the Missouri Botanical Garden
Vol. 78, No. 1 (1991), pp. 201-223
DOI: 10.2307/2399606
Stable URL: http://www.jstor.org/stable/2399606
Page Count: 23
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Studies in Neotropical Paleobotany. IX. The Pliocene Communities of Panama-Angiosperms (Dicots)
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Abstract

Fifty-one fossil dicotyledonous pollen types and 27 unknowns are described from the Pliocene Gatun Formation of Panama. These are Cymbopetalum, Ilex, cf. Aguiaria, Bernoullia, Ceiba, Pseudobombax, Bursera, cf. Bucida, Combretum/Terminalia, Mutisieae type, cf. Cionosicys, Ericaceae (types 1, 2), Alchornea, cf. Glycydendrum, cf. Jatropha, cf. Stillingia, Quercus, Alfaroa/Oreomunnea, Acacia, Crudia, Erythrina, Utricularia, Loranthaceae (types 1, 2), Malpighiaceae (types 1, 2), Hampea/Hibiscus, Melastomataceae, Cedrela, Guarea, Eugenia/Myrcia, Cabomba, Hauya, Rhizophora, Chomelia type, Cosmibuena, Faramea (types 1, 2), Posoqueria, Casimiroa, Allophylus, Cupania, Paullinia, Serjania, cf. Bumelia, Symplocos (types 1, 2), Mortoniodendron, Aegiphila, and Petrea. Spores of the lycopods and ferns, and pollen of the gymnosperms and monocotyledenous angiosperms, have been described previously. Paleoecological and paleoenvironmental interpretations will be presented in a concluding paper.

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