|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.
|W. Hantzschel 1975||Thick cylindrical stalk (diameter about 4 cm) followed by club- or ear-shaped part, with deep median furrow, consisting of biserially arranged overlapping rows of leaves; surface of ear-shaped part nodose, nodes arranged in parallel rows.|