|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.
|P. Y. Parkhaev and Y. Demidenko 2010||"Small flattened sclerites up to 1.1 mm long, composed of basal column and basal cavity with tubercles on it. Basal column straight or curved with smooth exterior. Cross-section of column oval or almost circular. Basal cavity flattened, triangular or concave triangular in outlines. Basal cavity has wavy-tuberculate or zigzag-like ornamentation on its exterior surface. Tubercles elongated, straight or bent, smooth."|