|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
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||Pollen grain tricolpate to tricolporate, subspheroidal; furrow C α 1, C β 2, C γ 1; sculpture type per-reticulate (maximum diameter of lumina 0.5 μ). Polar area extensive (about 12 μ). Thickness of exine about 1 μ; wall semitectate. Ectexine thicker than endexine. Muri simplibaculate. 'Costae transversales' and 'costae colpi' present.|