|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||Starlike trace fossil preserved in convex hyporelief; 6 to 7 cm in diameter, maximum thickness (11 cm) in central region (diameter 6-10 mm) from which radiate approximately 30 ridges (1.5 mm wide, 2-4 mm in relief) grouped in “bundles”; ridges commonly bifurcate toward margins and occasionally reach margins.|