|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
It was assigned to Wiwaxiidae by Walcott (1911) and Conway Morris and Robinson (1988); to Sachitida by Sepkoski (2002); to Metazoa by Bambach et al. (2007); to Halwaxida by Conway Morris and Caron (2007); and to Annelida by Caron and Jackson (2008).
Is something missing? Join the Paleobiology Database and enter the data
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.