|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 stephanoporate, equatorial limb approximately circular; pore P α 1b-3b, P β 1, P γ 2; sculpture gemmate (diameter of the elements about 2.7 μ). Columellae ('granulae') distinct and arranged in a micro-reticulate pattern (diameter of lumina < 0.5 μ). Thickness of exine 2 μ; ectexine thicker than endexine. Muri simplibaculate and grain probably semitectate.|