|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 heterocolpate, prolate-subprolate; furrow C α 2, C β 2-3, C γ 1; P α 1b, P β 1, P γ 1; sculpture type reticulate-foveolate (diameter of lumina 1.2 μ). Muri simplibaculate. Reticulum more prominent towards the poles. Thickness of exine 2.5μ; ectixine thicker than endexine. Wall semitectate. Furrows with costar colpi and sometimes a margo. Polar area 7μ.|