|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||Trace up to 5 (rarely 10) mm wide; in epirelief preserved as plaited ridges with biserially arranged, obliquely aligned pads of sediment; in hyporelief preserved as smooth biserial grooves separated by median ridge; course strongly winding and direction changing sharply; trace may intersect itself or other traces; ridges and their grooves may be separated by vertical distance of 1 cm; usually preserved in clastic sediments.|