|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 probably inaperturate; sculpture type clavate. Clavae placed in a pentagonal or hexagonal arrangement and at the apex they are angular in shape. Clavae 3.2 μ long and about 1.7 μ in diameter. Thickness of exine about 4 μ. Wall probably intectate. Some specimens seem to be decollate but the possible furrows are never distinct.|