Full reference: D. H. Erwin, M. Laflamme, S. M. Tweedt, E. A. Sperling, D. Pisani and K. J. Peterson. 2011. The Cambrian Conundrum: Early Divergence and Later Ecological Success in the Early History of Animals. Science 334(6059):1091-1097
Parent taxon: Metazoa according to D. H. Erwin et al. 2011
Sister taxa: Bilateria, Diploblastica, Homoblastica, Hyolithelminthida, Vertebrosa, Westgardia, Somatohelix, Protolyellia, Kinzeriidae, Mesozoa, Siphonoconcha, Bronicella, Limacites, Atalotaenia, Erniettomorpha, Hadryniscala, Chenmengella, Spygoria, Triradialomorpha, Proarticulata, Macrocypris kayi, Silicispongea, Euradiculata, Kimberellomorpha, Pentaradialomorpha, Odontogriphidae, Eodiorygma, Lidaconus, Oligoopilionus, Dorfopterus, Ventogyrus, Helanoichnus, Convolutubus, Evmiaksia, Bilaterialomorpha, Yunnanomedusa, Deuteronectanebos, Scenellopsis, Xidazoon, Lomosovis, Eumetazoa, Persimedusites, Yangtziramulus, Goettingenia, Chondroplon, Megathrix, Dictyorhabdus, Kuckaraukia, Gephyrea, Tentaculitoidea, Subtilicyathus, Sentularia, Problematica, Porifera, Petalonamae, Palaeacmaea, Epitheliozoa, Trichoplax, Gaojiashania, Hadrynichorde, Cnidaria, Tetraradialomorpha, Silicea, Yelovichnus, Bomakellia, Lazaichnus, Khasaktidae, Parazoa, Muricassis, Broccoliforma
Subtaxa: Arborea Charniodiscus Khatyspytia Vaizitsinia
Distribution:
• Vendian of Canada (1: Northwest Territories collection), the Russian Federation (1)
• Wonokan of Canada (8: Northwest Territories, Yukon)
• Ediacaran of Australia (14), Brazil (1), Canada (29: Newfoundland, Newfoundland and Labrador, Northwest Territories, Nova Scotia, Yukon), China (3), India (1), the Russian Federation (9), the United Kingdom (5)
Total: 72 collections including 92 occurrences