|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||Straight or somewhat bent burrows circular or oval in cross section, 1 to 3 cm in diameter, not branched; burrows end with hemispherical hollow, 4 to 5 cm in diameter; burrows perpendicular to bedding; usually slightly bent before enlarging to hemispherical hollow.|