|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.
|M. A. Caccavari and M. V. Guler 2006||Biconvex polyads, circular in outline with 16 anisopolar pollen grains, 8 central and 8 peripheral, syncolporate on the distal face (Y-shaped syncolpy in central and H-shaped in peripheral pollen grains).|