Parent taxon: Metazoa according to J. Zrzavy et al. 1998
Sister taxa: Bilateria, Diploblastica, Homoblastica, Hyolithelminthida, Vertebrosa, Westgardia, Convolutubus, Helanoichnus, Limacites, Dictyorhabdus, Arboreomorpha, Porifera, Evmiaksia, Subtilicyathus, Tomaculum, Euradiculata, Erniettomorpha, Triradialomorpha, Dorfopterus, Siphonoconcha, Chenmengella, Eodiorygma, Broccoliforma, Odontogriphidae, Kinzeriidae, Eumetazoa, Trichoplax, Bomakellia, Bilaterialomorpha, Deuteronectanebos, Yunnanomedusa, Lazaichnus, Gaojiashania, Proarticulata, Macrocypris kayi, Khasaktidae, Protolyellia, Spygoria, Cnidaria, Somatohelix, Oligoopilionus, Persimedusites, Bronicella, Goettingenia, Lomosovis, Mesozoa, Tetraradialomorpha, Gephyrea, Sentularia, Xidazoon, Hadryniscala, Palaeacmaea, Kimberellomorpha, Tentaculitoidea, Kuckaraukia, Muricassis, Hadrynichorde, Yangtziramulus, Atalotaenia, Petalonamae, Parazoa, Pentaradialomorpha, Yelovichnus, Problematica, Lidaconus, Megathrix, Silicea, Ventogyrus, Chondroplon, Epitheliozoa, Scenellopsis
Subtaxa: Monactinellidae
Distribution:
• Cretaceous of the United Kingdom (2 collections)
Total: 2 collections each including a single occurrence