|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.
|T. Van der Hammen and C. Garcia de Mutis 1966||Tricolpate, tectum perforate. Exine, except the perforations of the tectum, psilate. Columellae very big. The perforations of the tectum are very large in the polar area (up to 5.5 μ diameter), and much smaller towards the equator (±0.5 μ). Colpi relatively short, and polar are relatively large. Thickness of the exine ±3 μ, ektexine ±1.5 μ. Subspheroidal shape. Size ±45-55 μ. Has been found in the Zones A and B of the Paleocene.|