†informal Cambroernids Caron et al. 2010
Parent taxon: Ambulacraria according to J.-B. Caron et al. 2010
Sister taxa: Echinodermata, Hemichordata, Vetulocystida
Subtaxa: Cheungkongella Eldoniidae Herpetogaster
Distribution:
• Ordovician of the United Kingdom (1 collection)
• Marjumian of United States (1: Utah)
• Cambrian of Canada (13: British Columbia), China (17), the Russian Federation (1), United States (1: Utah)
Total: 34 collections including 37 occurrences