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