|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.
|W. Hantzschel 1975||Curved surface locomotion trail; somewhat variable width, changing throughout observed length from 2 to 3 cm; submedian ridge about 2 mm wide, distance from margins slightly variable; distinctly transverse rise-and-groove sculpture: grooves about 2 mm long, separated by longer straight rises ending in pitlike depressions.|