Full reference: P. Y.u. Parkhaev. 1998. Siphonoconcha-A new class of Early Cambrian bivalved organisms. Paleontological Journal 32(1):1-15
Parent taxon: Metazoa according to P. Yu. Parkhaev 1998
Sister taxa: Bilateria, Diploblastica, Homoblastica, Hyolithelminthida, Vertebrosa, Westgardia, Hadryniscala, Pentaradialomorpha, Bronicella, Protolyellia, Mesozoa, Trichoplax, Hadrynichorde, Petalonamae, Eodiorygma, Chenmengella, Yangtziramulus, Yelovichnus, Khasaktidae, Lomosovis, Deuteronectanebos, Epitheliozoa, Eumetazoa, Problematica, Subtilicyathus, Arboreomorpha, Broccoliforma, Oligoopilionus, Porifera, Parazoa, Triradialomorpha, Odontogriphidae, Scenellopsis, Gephyrea, Dictyorhabdus, Convolutubus, Kuckaraukia, Proarticulata, Spygoria, Lidaconus, Tetraradialomorpha, Megathrix, Rhizostomites, Atalotaenia, Kimberellomorpha, Limacites, Ventogyrus, Macrocypris kayi, Silicea, Bomakellia, Chondroplon, Goettingenia, Somatohelix, Nectocarididae, Xidazoon, Kinzeriidae, Sentularia, Gaojiashania, Cnidaria, Erniettomorpha, Silicispongea, Palaeacmaea, Bilaterialomorpha, Tentaculitoidea, Persimedusites, Evmiaksia, Yunnanomedusa, Muricassis, Helanoichnus, Lazaichnus, Euradiculata, Agmata
Subtaxa: Tianzhushanelliformes
Distribution:
• Cambrian of Australia (30 collections), China (4), Greenland (2), the Russian Federation (3), Turkey (1)
Total: 40 collections including 72 occurrences