|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 tricolpate, prolate-subprolate; furrow C α 2, C β 2, C γ I; sculpture type clavate (-gemmate). Diameter of clavae < I μ and length about I μ. Thickness of exine about 1.5 μ; ectexine (including sculpture) thicker than endexine. Grain apparently intectate. Furrows provided with a margo. Polar area 4 μ.|