Parent taxon: Metazoa according to S. M. Adl et al. 2005
See also Zrzavy et al. 1998
Sister taxa: Bilateria, Diploblastica, Homoblastica, Hyolithelminthida, Vertebrosa, Westgardia, Broccoliforma, Somatohelix, Megathrix, Petalonamae, Lidaconus, Sentularia, Agmata, Chenmengella, Xidazoon, Tentaculitoidea, Arboreomorpha, Deuteronectanebos, Euradiculata, Kimberellomorpha, Silicispongea, Muricassis, Yunnanomedusa, Kinzeriidae, Scenellopsis, Epitheliozoa, Yangtziramulus, Proarticulata, Erniettomorpha, Protolyellia, Lomosovis, Parazoa, Silicea, Kuckaraukia, Triradialomorpha, Bronicella, Gaojiashania, Chondroplon, Goettingenia, Siphonoconcha, Convolutubus, Spygoria, Eumetazoa, Bomakellia, Trichoplax, Dictyorhabdus, Yelovichnus, Pentaradialomorpha, Helanoichnus, Evmiaksia, Atalotaenia, Lazaichnus, Khasaktidae, Problematica, Palaeacmaea, Ventogyrus, Oligoopilionus, Tetraradialomorpha, Porifera, Persimedusites, Cnidaria, Limacites, Gephyrea, Hadryniscala, Bilaterialomorpha, Subtilicyathus, Rhizostomites, Eodiorygma, Macrocypris kayi, Hadrynichorde, Nectocarididae, Odontogriphidae
Subtaxa: Orthonecta Rhombozoa