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, Tetraradialomorpha, Broccoliforma, Parazoa, Dictyorhabdus, Chondroplon, Arboreomorpha, Epitheliozoa, Yunnanomedusa, Odontogriphidae, Mesozoa, Silicea, Xidazoon, Gaojiashania, Erniettomorpha, Ventogyrus, Evmiaksia, Megathrix, Tentaculitoidea, Gephyrea, Sentularia, Helanoichnus, Bomakellia, Subtilicyathus, Protolyellia, Nectocarididae, Khasaktidae, Kinzeriidae, Problematica, Kimberellomorpha, Euradiculata, Somatohelix, Yangtziramulus, Bilaterialomorpha, Pentaradialomorpha, Muricassis, Eodiorygma, Agmata, Cnidaria, Rhizostomites, Goettingenia, Porifera, Bronicella, Oligoopilionus, Palaeacmaea, Petalonamae, Triradialomorpha, Hadrynichorde, Spygoria, Proarticulata, Hadryniscala, Eumetazoa, Atalotaenia, Scenellopsis, Convolutubus, Lazaichnus, Limacites, Macrocypris kayi, Silicispongea, Trichoplax, Persimedusites, Lidaconus, Chenmengella, Yelovichnus, Deuteronectanebos, Lomosovis, Kuckaraukia
Subtaxa: Tianzhushanelliformes
Distribution:
• Cambrian of Australia (30 collections), China (4), Greenland (2), the Russian Federation (3), Turkey (1)
Total: 40 collections including 72 occurrences