Full reference: O. Butchili. 1910. Vorlesungen über vergleichende Anatomie 1-931
Parent taxon: Metazoa according to K.J. Peterson et al. 2005
See also Nielsen 2012 and Tsai and Fordyce 2015
Sister taxa: Bilateria, Diploblastica, Homoblastica, Hyolithelminthida, Namalia, Vertebrosa, Westgardia, Convolutubus, Protolyellia, Tetraradialomorpha, Hiemalora, Euradiculata, Deuteronectanebos, Lazaichnus, Bomakellia, Hadrynichorde, Megathrix, Subtilicyathus, Rangeomorpha, Parviscopa, Pseudovendia, Mawsonites, Erniettomorpha, Silicea, Beltanelliformis, Palaeacmaea, Armillifera, Tentaculitoidea, Muricassis, Kuckaraukia, Nemiana, Ventogyrus, Spygoria, Odontogriphidae, Chondroplon, Pentaradialomorpha, Arboreomorpha, Bronicella, Gephyrea, Porifera, Xidazoon, Yunnanomedusa, Limacites, Inaria, Sentularia, Chenmengella, Scenellopsis, Oligoopilionus, Paracharnia, Nectocarididae, Macrocypris kayi, Kullingia, Persimedusites, Trichoplax, Funisia, Cnidaria, Lidaconus, Mesozoa, Goettingenia, Khasaktidae, Epitheliozoa, Parazoa, Problematica, Rhizostomites, Primocandelabrum, Triradialomorpha, Siphonoconcha, Kinzeriidae, Proarticulata, Bilaterialomorpha, Yangtziramulus, Lomosovis, Eodiorygma, Hadryniscala, Kimberellomorpha, Yelovichnus, Petalonamae, Silicispongea, Ovatoscutum, Somatohelix, Agmata, Atalotaenia, Evmiaksia, Dictyorhabdus
Subtaxa: Bilateralomorpha Neuralia Placozoa Tribrachiomorpha Triploblastica