|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|A. E. González-Guzmán 1967 (Retitricolpites perforatus)||Pollen grain tricolpate; subsphaeroidal-subangular; furrow C α 1, C β 1a, C γ 2-1; sculpture type reticulate (-foveolate), muri simplibaculate, semitectate. Thickness of exine 2.5 μ, ectexine thicker than endexine. Polar are rather small.|
|Jaramillo and Dilcher 2001||Tricolpate, mid-sized (32 µm), reticulate-foveolate, lumina > 0.5-1 µm wide, > 0.5-2 µm long, uniform over entire surface.|