|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 triporate; spheroidal; pore P α 2, P β 2, P γ 1; sculpture type reticulate at the polar area and foveolate at the equator. Muri simplibaculate. Columellae digitate in polar area. Grain probably semitectate. Exine has a thickness of 2 μ in equatorial area and of about 3.2 μ in polar area. Diameter of lumina in polar area is about 1.3 μ and in equatorial area < 0.5 μ. Pores provided with costar pori. Ectexine thicker than endexine.|