|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, subprolate; furrow C α 2, C β 2, C 𝝲 1; pore P α 3c, P β 1, P 𝝲2; sculpture type reticulate (-foveolate). Lumina diminishing towards furrows where sculpture becomes foveate. Diameter of lumina about 0.5-1 µ, murk simplibaculate. Wall semitectate. Furrows with distinct costar colpi. Sometimes pores not visible, and grains seemingly tricolpate. Thickness of exine 1.5-3.5 µ. Polar area rather large.|