Period: 544 million to 536 million years ago.
†Haikouichthys (Genus) Luo, Hu & Shu, 1999
†Myllokunmingia (Genus)
†Myllokunmingiidae (Family) Shu, 2003
Within limits:
†Distacodontina (Order)
Entire range:
†Myllokunmingiida (Order) Shu, 2003
Lower limit:
Vertebrata (Subphylum) Cuvier, 1812 - vertebrates
Entire range:
†Ercaia (Genus) Chen et al., 2001
†Ercaia minuscula Chen et al., 2001
†Klausmuelleria salopensis Siveter et al., 2003
†Yicaris (Genus) X. Zhang et al., 2007
†Yicaris dianensis X. Zhang et al., 2007
Within limits:
Branchiopoda (Class) Latreille, 1817 - branchiopods
Cephalocarida (Class) H.L. Sanders, 1955 - cephalocarids
†Leperditicopida (Order) Scott, 1961
Malacostraca (Class) Latreille, 1802
Ostracoda (Class) Latreille, 1802 - ostracods
Entire range:
†Bathynotidae (Family)
†Buenaspis (Genus) Budd, 1999
†Crassifimbra (Genus)
†Emuella polymera Pocock, 1970
†Kerygmachela kierkegaardi Budd
†Kunmingella (Genus)
†Misszhouia (Genus) Chen & Zhou, 1997
†Olenellidae (Family)
†Olenellus (Genus) Billings, 1861
†Olenellus clarki (Resser)
†Redlichia (Genus) Cossmann, 1902
†Tsunyidiscidae (Family)
†Tsunyidiscus (Genus) Chang, 1966
†Tsunyidiscus niutitangensis (W. Zhang, 1964)
†Zhangshania typica Li, Kang & Zhang, 1990
Lower limit:
†Agnostida (Order) Salter, 1864
†Liwia (Genus) Dzik & Lendzion, 1988
†Naraoia (Genus) Walcott, 1912
†Nektaspida (Order) Raymond, 1920 - nektaspids
Within limits:
Arthropoda (Phylum) Latreille, 1829 - arthropods
†Chasmataspidida (Order) Caster & Brooks, 1956
Chelicerata (Superclass)
Entire range:
†Aldanella (Genus) Vostokova, 1962
†Beshtashella (Genus) Missarzhevskij, 1981
†Fordilla (Genus) Barrande, 1881
†Fordilla sibirica
†Fordilla troyensis Barrande
†Heraultipegma (Genus) Pojeta & Runnegar, 1976
†Pojetaia (Genus) Jell, 1980
†Pojetaia runnegari Jell
Lower limit:
Bivalvia (Class) C. Linnaeus, 1758 - bivalves
†Cyrtonellida (Order)
†Hyolithida (Order) Matthew, 1899
Nautilus (Genus) C. Linnaeus, 1758
†Onychochilina (Suborder)
†Ribeirioida (Order) Kobayashi, 1933
†Rostroconchia (Class) Pojeta et al., 1972
Lower limit:
†Palaeoscolex (Genus) Whittard, 1953
Entire range:
†Anningvermis (Genus) D.-Y. Huang et al., 2004
†Antennacanthopodia gracilis Ou & Shu, 2011
†Archaeocyathus (Genus) Roemer, 1880
†Archaeolynthus (Genus) Taylor, 1910
†Corynetis (Genus) Luo & Hu, 1999
†Coscinocyathus (Genus) Bornemann, 1884
†Dactyloidites asteroides Fitch
†Dokidocyathus (Genus) Taylor, 1910
†Emeiconularia (Genus) Qian Yi, Van Iten, Cox, Zhu & Zhuo, 1997
†Ethonophyllum (Genus)
†Helicoplacoidea (Class) Durham & Caster, 1963
†Hydroconozoa (Class) Kordeh, 1963
†Hyolithellus (Genus)
†Kinzercystis (Genus) Sprinkle, 1973
†Maotianoascus (Genus) Chen & Zhou, 1997
†Maotianoascus octonarius Chen & Zhou, 1997
†Metacyathus (Genus) Bedford, 1934
†Moorowipora (Genus) Sorauf & Savarese, 1995
†Moorowipora chamberensis Sorauf & Savarese, 1995
†Siberion lenaicus Dzik, 2011
†Syrongocnema (Genus)
†Thalamocyathus (Genus) Gordon, 1922
†Xenusion (Genus) Pompeckj, 1927
†Yunnanozoa (Class) Dzik, 1995 - yunnanozoans
†Yunnanozoon (Genus) Hou, Ramsköld & Bergström, 1991
†Yunnanozoon lividum Hou, Ramsköld & Bergström, 1991
†Yunnanozoonidae (Family) Dzik, 1995
Lower limit:
†Acrotheloidea (Superfamily)
Acrotretida (Order) Kuhn, 1949
†Acrotretoidea (Superfamily)
Amphidiscophora (Subclass) F.E. von Schulze, 1887
Annelida (Phylum) Lamarck, 1809 - segmented worms
†Chileata (Class)
†Chileida (Order)
Craniata (Class) Williams, Carlson, Brunton, Holmer & Popov, 1996
Craniiformea (Subphylum) Popov, Bassett, Holmer & Laurie, 1993
†Craniopsida (Order) Gorjansky & Popov, 1985
†Craniopsidae (Family) Williams, 1963
†Craniopsoidea (Superfamily) Williams, 1963
†Dalmanellidina (Suborder)
†Edrioasteroidea (Class)
†Eocrinoidea (Class)
†Heteractinida (Order) Hinde, 1888
†Kutorginata (Class)
†Kutorginida (Order)
†Kutorginoidea (Superfamily)
†Leptomitidae (Family) de Laubenfels, 1955
Lingulata (Class)
Lingulida (Order) Waagen, 1885
Linguliformea (Subphylum)
Linguloidea (Superfamily) Menke, 1828
†Lobopodia (Phylum) Snodgrass, 1938 - lobopodians
Mollusca (Phylum) Linnaeus, 1758 - molluscs
†Naukatida (Order)
†Naukatoidea (Superfamily)
†Nisusioidea (Superfamily)
†Obolellata (Class)
†Obolellida (Order)
†Obolelloidea (Superfamily)
†Obolidae (Family)
†Orthida (Order) Schuchert & Cooper, 1932
†Orthidina (Suborder)
†Orthothecida (Order) Marek, 1966
†Paterinata (Class)
†Paterinida (Order)
†Paterinoidea (Superfamily)
†Pentamerida (Order)
†Plectorthoidea (Superfamily)
†Porambonitoidea (Superfamily)
†Procoelomata (Phylum) Bergström, 1989
†Protorthida (Order)
†Protorthoidea (Superfamily)
†Protospongiidae (Family) Hinde, 1887
†Protospongioidea (Suborder) Finks, 1960
†Reticulosa (Order) Reid, 1958
Rhynchonellata (Class)
Rhynchonelliformea (Subphylum)
†Syntrophiidina (Suborder)
†Tabulata (Order)
†Xenusia (Class) Dzik & Krumbiegel, 1989 - xenusians
Within limits:
Anthozoa (Class) Ehrenberg, 1831
Brachiopoda (Phylum) Duméril, 1806 - brachiopods
Calcarea (Class) Bowerbank, 1864 - calcareous sponges
Ceractinomorpha (Subclass) Lévi, 1973
Clionaidae (Family) d'Orbigny, 1851
Cnidaria (Phylum) Hatschek, 1888 - cnidarians
†Conchopeltida (Order)
†Conulata (Class) Moore & Harrington, 1956
Demospongiae (Class) Sollas, 1875 - demosponges
†Dierespongioidea (Suborder) Rigby, 1976
Echinodermata (Phylum) Klein, 1734 ex De Brugière, 1789 - echinoderms
†Graptolithina (Class)
Hadromerida (Order) Topsent, 1898
Hexactinellida (Class) O. Schmidt, 1870 - hexactinellids
Hydrozoa (Class) Owen, 1843
†Hyolithes (Genus) Eichwald, 1840
Lithistida (Order) Schmidt, 1870 - lithistids
Monoplacophora (Class) Odhner, 1940 - monoplacophorans
†Orthotheca (Genus)
Porifera (Phylum) Grant, in Todd, 1836 - sponges
†Protomedusae (Class)
Pycnogonida (Class) Latreille, 1810 - pycnogonids
†Rhizomorina (Suborder) Zittel, 1878
Scyphozoa (Class) - jellyfish
Tetractinomorpha (Subclass) Lévi
Verongida (Order) Bergquist
Zoantharia (Subclass)
Lower limit:
Foraminifera (Class) Lee, 1990
Within limits:
†Acritarcha Evitt, 1963 - acritarchs
Paleodictyon (Genus) Menghini, 1850
Polycystinea (Class) - polycystines
Within limits:
Animalia (Kingdom) Linnaeus, 1758 - animals
Eukaryota (Domain) Chatton, 1925 - eukaryotes
Within limits:
Cyanobacteria (Phylum) Stanier, 1974 ex Cavalier-Smith, 2002 - cyanobacteria
Within limits:
Biota
Entire range:
Sinsk Formation (Formation) (Russia: Siberia)
Within limits:
Aldan Shield
Anabar Shield
Arabian-Nubian Shield
Baikal Fold Belt
Baltic Shield
Cameroon N'tem Complex
Central Africa Craton
Chaillu Craton
Committee Bay Block
Congo Craton
Ethiopian Block
†Gondwana E. Suess, 1861
Greenland Shield
Guapore Craton
Guiana Shield
†Iapetus Ocean
Indian Shield
Kaapvaal Craton
Kaminak Group
Kasaï Craton
†Khanty Ocean
Labrador Shield
†Laurentia
Litchfield Complex
Luis Alves Massif
Madagascar Craton
Man Shield
Nanambu Complex
Napier Complex
Pilbara Block
†Proto-Tethys Ocean
Reguibat Shield
Rio de la Plata Craton
Rio de la Plata Massif
Rul Jungle Complex
São Francisco Craton
Sayan Fold Belt
Scottish Shield
Sebakwe Proto-Craton
Slave Craton
Slave Province
Superior Craton
Superior Province
Tanzanian Craton
Tarim Craton
Tuareg Shield
Ukrainian Shield
West African Craton
Wyoming Province
Yangtze Craton
Yienisei Fold Belt
Yilgarn Block
Zambian Block
Zimbabwe Craton
http://www.palaeos.com/Paleozoic/Cambrian/EarlyCam.html