|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||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||"Narrow elongated sclerites up to 2.5 mm long and 0.2–0.4 mm wide, composed of basal column and tubercles on anterior part of column. Cross-section of column oval or flattened oval. Tubercles spatulate, ridge-like or papillate."|