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

Fifty-one fossil d T pollen types and 27 unknowns are described from the Pliocene Gatun Formation of Panama.These are Cymbopetalum, llex, 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, Ве Alfaroa / Oreomunnea, Acacia, Crudia, Erythrina, na Loranthaceae (types 1, 2), Malpighiaceae (types 1, 2), Hampea / Hibiscus, Melastomataceae, Cedrela, abomba, Hauya, izophora, Chomelia type, Cosmibuena, Faramea (types 1, Allophylus, Capania, Paullinia, Serjania, cf.Bumelia, Symplocos пр 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 ale will be presented in a concluding paper This paper completes the systematic treatment of plant microfossils recovered from the Pliocene Gatun Formation of Panama.Introductory material and the systematics of other groups (ferns, gymnosperms, and monocots) are given in Graham (1991), new records of previously unreported taxa are provided in Graham (1990), and the geology of the pollen-bearing deposits is summarized in Graham et al. (1985).Fifty-one dicotyledonous pollen types, together with 27 unknowns, are recognized here.Thirty-one fern, gymnosperm, and monocot microfossils, and one Pyrrophyta (dinoflagellate), were previously reported, bringing the total number of taxa to 110.Numerical representations, and paleocommunity and paleoenvironmental re constructions will be presented in a concluding