|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 circular; pore P α 2, P β 3, P γ 2; sculpture type gemmate; diameter of gemmae from 1.3-1.1 μ, their length about 1.1 μ. Columellae arranged in a distinct reticulum-like pattern. Pores with distinct costae pori and probably also with vestibulum. Thickness of exine about 1.5 μ; ectexine thicker than endexine. Grain semitectate.|