Abstract
Four Eocene pollen species, with affinities to Sapotaceae, Loranthaceae, Euphorbiaceae and Sapindaceae, were studied with light and scanning electron microscopy. The use of both techniques increased the understanding of familial and subfamilial relationships of the fossils to extant taxa. Comparison with extant taxa show that Tetracolporopollenites brevis has affinities with taxa in Mimusopsioideae and Madhucoideae; Gothanipollis cockfieldensis has affinities to the monophyletic large flowered Neotropical Loranthaceae; Retitricolporites irregularis with Amanoeae; and Cupanieidites orthoteichus with the Cupania group of Cupanieae. Precise affinities can also lead to a better understanding of the paleoclimatology and paleobiogeography of these fossil species.
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