Period: 541 million to 509 million years ago.
	Fishes (5)
	Entire range
	†Myllokunmingia (Genus) Shu, Zhang & Han, 1999
	†Myllokunmingiida (Subclass) Shu, 2003
	†Myllokunmingiida (Order) Shu, 2003 see (Order) †Myllokunmingiiformes Shu, 2003
	†Myllokunmingiidae (Family) Shu, 2003
	Within limits
	†Distacodontina (Order)
	Vertebrates (3)
	Lower limit
	Vertebrata (Subphylum) Cuvier, 1812 see (Infraphylum) Vertebrata Lamarck, 1801 - vertebrates
	Vertebrata ([unranked]) Lamarck, 1801 see (Infraphylum) Vertebrata Lamarck, 1801 - vertebrates
	Within limits
	Vertebrata (Phylum) Lamarck, 1801 see (Infraphylum) Vertebrata Lamarck, 1801
	Echinoderms (7)
	Entire range
	†Helicoplacoidea (Class) Durham & Caster, 1963
	†Kinzercystis (Genus) Sprinkle, 1973
	Lower limit
	†Blastozoa (Subphylum) Sprinkle, 1973 see (Infraphylum) †Blastozoa Sprinkle, 1973
	Echinozoa (Subphylum) von Zittel, 1895 see (Infraphylum) Echinozoa Haeckel, in Von Zittell, 1895
	†Edrioasteroidea (Class) Billings, 1858
	†Eocrinoidea (Class) Jaekel, 1918
	Within limits
	Echinodermata (Phylum) Bruguière, 1789 - echinoderms
	Crustaceans (15)
	Entire range
	†Ercaia (Genus) Chen et al., 2001
	†Ercaia minuscula Chen et al., 2001
	†Klausmuelleria salopensis Siveter et al., 2003
	†Phosphatocopida sp. see †Klausmuelleria salopensis Siveter et al., 2003
	†Vestrogothicopina ([unranked])
	†Yicaris (Genus) X. Zhang et al., 2007
	†Yicaris dianensis X. Zhang et al., 2007
	Lower limit
	Eucrustacea (Epiclass) Kingsley, 1894 see (Subphylum) Pancrustacea Zrzavý et al., 1997
	Within limits
	Branchiopoda (Class) Latreille, 1817 - branchiopods
	Cephalocarida (Class) H.L. Sanders, 1955 - cephalocarids
	Crustacea (Superclass) Pennant, 1777 see ([unranked]) Crustaceomorpha Chernyshev, 1960 - crustaceans
	†Leperditicopida (Order) Scott, 1961
	Malacostraca (Class) Latreille, 1802
	Ostracoda (Class) Latreille, 1802 - ostracods
	Ostracoda (Subclass) Latreille, 1806 see (Class) Ostracoda Latreille, 1802 - ostracods
	Arthropods (34)
	Entire range
	†Bathynotidae (Family) Hupé, 1953
	†Buenaspis (Genus) Budd, 1999
	†Crassifimbra (Genus) Lochman, 1947
	†Emuella polymera Pocock, 1970
	†Kerygmachela kierkegaardi Budd
	†Kunmingella (Genus) Huo, 1956
	†Misszhouia (Genus) Chen, Edgecombe & Ramsköld, 1997
	†Olenellidae (Family) Walcott, 1890
	†Olenellus (Genus) Billings, 1861
	†Olenellus clarki (Resser)
	†Redlichia (Genus) Cossmann, 1902
	†Tsunyidiscidae (Family) Zhang, 1980
	†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 see (Class) †Nektaspida Raymond, 1920 - nektaspids
	†Polymerida (Order)
	†Trilobita (Class) Walch, 1771 - trilobites
	Within limits
	Arthropoda (Phylum) Siebold, 1848 - arthropods
	†Chasmataspidida (Order) Caster & Brooks, 1956
	Chelicerata (Subphylum) Heymons, 1901
	Chelicerata (Superclass) Heymons, 1901 see (Subphylum) Chelicerata Heymons, 1901
	Crustacea (Subphylum) Brünnich, 1772 see (Superclass) Crustacea Pennant, 1777 - crustaceans
	Euchelicerata ([unranked]) Weygoldt & Paulus, 1979
	†Marellomorpha (Subphylum) see (Subphylum) †Marrellomorpha Beurlen, 1934 - lace crabs
	Merostomata (Class) Dana, 1852 see (Class) Xiphosura Latreille, 1802 - horseshoe crabs
	Onychophora (Superclass) Grube, 1853 see (Phylum) Onychophora Grube, 1853
	Pycnogonida (Class) Latreille, 1810 - pycnogonids
	†Trilobita (Infraphylum) Walch, 1771 see (Class) †Trilobita Walch, 1771 - trilobites
	†Trilobitomorpha (Subphylum) Størmer, 1944 see (Superclass) †Trilobitomorpha Størmer, 1944 - trilobites
	†Trilobitomorpha (Superclass) Størmer, 1944, stat. inval. see (Superclass) †Trilobitomorpha Størmer, 1944
	Molluscs (24)
	Entire range
	†Aldanella (Genus) Vostokova, 1962
	†Beshtashella (Genus) Missarzhevskij, 1981
	†Fordilla (Genus) Barrande, 1881
	†Fordilla sibirica Krasilova, 1977
	†Fordilla troyensis Barrande
	†Heraultipegma (Genus) Pojeta & Runnegar, 1976
	†Pojetaia (Genus) Jell, 1980
	†Pojetaia runnegari Jell
	Lower limit
	Archaeogastropoda (Order) Thiele, 1925 see (Order) Vetigastropoda Salvini-Plawen, 1980
	Bivalvia (Class) Linnaeus, 1758 - bivalves
	†Cyrtonellida (Order) Horny, 1963
	Cyrtosoma (Subphylum) Runnegar & Pojeta Jr., 1974 see (Phylum) Mollusca Linnaeus, 1758
	Diasoma (Subphylum) Runnegar & Pojeta Jr., 1974 see (Phylum) Mollusca Linnaeus, 1758
	†Hyolitha ([unranked]) see (Phylum) †Hyolitha (Marek, 1963)
	†Hyolithida (Order) Matthew, 1899
	Isofilibranchia (Subclass) Iredale, 1939 see (Superorder) Isofilibranchia Iredale, 1939
	Mollusca (Phylum) Linnaeus, 1758 - molluscs
	Nautilus (Genus) Linnaeus, 1758
	†Onychochilina (Suborder)
	Palaeotaxodonta (Subclass) Korobkov, 1954 see (Subclass) Protobranchia Pelseneer, 1889
	†Pelagiellida (Order) Runnegar & Pojeta, 1985 see (Order) †Pelagielliformes Runnegar & Pojeta, 1985
	Prosobranchia (Subclass) Milne-Edwards, 1848 see (Class) Gastropoda Cuvier, 1795 - prosobranchs
	†Ribeirioida (Order) Kobayashi, 1933
	†Rostroconchia (Class) Pojeta et al., 1972
	Annelids (2)
	Lower limit
	Annelida (Phylum) Lamarck, 1809 - segmented worms
	†Palaeoscolex (Genus) Whittard, 1953
	Sponges (30)
	Entire range
	†Archaeolynthus (Genus) Taylor, 1910
	†Dokidocyathus (Genus) Taylor, 1910
	†Ethonophyllum (Genus)
	†Metacyathus (Genus) Bedford, 1934
	†Syrongocnema (Genus)
	†Thalamocyathus (Genus) Gordon, 1922
	Lower limit
	Amphidiscophora (Subclass) Schulze, 1886
	†Archaeocyatha (Subphylum) Vologdin, 1937 see (Class) †Archaeocyatha Bornemann, 1884
	†Heteractinida (Order) Hinde, 1887 see (Class) †Heteractinida de Laubenfels, 1955
	†Irregulares (Class) Vologdin, 1937 see (Class) †Archaeocyatha Bornemann, 1884
	†Leptomitidae (Family) de Laubenfels, 1955
	†Protospongiidae (Family) Hinde, 1887
	†Protospongioidea (Superfamily) Hinde, 1887
	†Regulares (Class) Vologdin, 1937 see (Class) †Archaeocyatha Bornemann, 1884
	†Reticulosa (Order) Reid, 1958
	Within limits
	Calcarea (Class) Bowerbank, 1864 - calcareous sponges
	Ceractinomorpha (Subclass) Lévi, 1953 see (Class) Demospongiae Sollas, 1885
	Clionaidae (Family) d'Orbigny, 1851
	Clionidae (Family) d'Orbigny, 1851, nom. illeg. see (Family) Clionaidae d'Orbigny, 1851
	Demospongea (Class) Sollas, 1875 see (Class) Demospongiae Sollas, 1885
	Demospongiae (Class) Sollas, 1885 - demosponges
	†Dierespongioidea (Superfamily) Rigby & Gutschick 1976
	Hadromerida (Order) Topsent, 1894
	Hexactinellida (Class) Schmidt, 1870 - hexactinellids
	Lithistida (Order) Schmidt, 1870 see (Subclass) Lithistida Schmidt, 1870 - lithistids
	Porifera (Phylum) Grant, 1836 - sponges
	Rhizomorina (Suborder) Zittel, 1895
	Solenida (Order) de Laubenfels, 1955
	Tetractinomorpha (Subclass) Lévi, 1953 see (Class) Demospongiae Sollas, 1885
	Verongida (Order) Bergquist, 1978
	Invertebrates (91)
	Entire range
	†Agmata (Phylum) E.L. Yochelson, 1977 see (Order) †Volborthellida
	†Anningvermis (Genus) D.-Y. Huang et al., 2004
	†Antennacanthopodia gracilis Ou & Shu, 2011
	†Corynetis (Genus) Luo & Hu, 1999
	†Dactyloidites asteroides Fitch
	†Emeiconularia (Genus) Qian Yi, Van Iten, Cox, Zhu & Zhuo, 1997
	†Haikouella (Genus) Chen et al., 1999 see (Genus) †Yunnanozoon Hou, Ramsköld & Bergström, 1991
	†Haikouella jianshanensis Shu et al., 2003 see †Yunnanozoon lividum Hou, Ramsköld & Bergström, 1991
	†Haikouella lanceolata Chen et al., 1999 see †Yunnanozoon lividum Hou, Ramsköld & Bergström, 1991
	†Hydroconozoa (Class) Kordeh, 1963
	†Hyolithellus (Genus) Billings, 1872
	†Maotianoascus (Genus) Chen & Zhou, 1997
	†Maotianoascus octonarius Chen & Zhou, 1997
	†Moorowipora (Genus) Sorauf & Savarese, 1995
	†Moorowipora chamberensis Sorauf & Savarese, 1995
	†Siberion lenaicus Dzik, 2011
	†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 see (Family) †Yunnanozoidae Dzik, 1995
	Lower limit
	†Acrotheloidea (Superfamily) Walcott, 1908
	Acrotretida (Order) Kuhn, 1949
	†Acrotretoidea (Superfamily) Schuchert, 1893
	†Archaeocyatha (Phylum) Vologdin, 1937 see (Class) †Archaeocyatha Bornemann, 1884
	Articulata (Class) Huxley, 1869
	†Billingsellacea (Superfamily) see (Superfamily) †Billingselloidea Schuchert, 1893
	†Chileata (Class) Williams  et al., 1996
	†Chileida (Order) Popov & Tikhonov, 1990
	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) Moore, 1952
	†Hyolitha (Phylum) (Marek, 1963) see (Class) †Hyolitha Marek, 1963
	Inarticulata (Class) (Huxley, 1869)
	†Kutorginata (Class)
	†Kutorginida (Order) Kühn, 1949
	†Kutorginoidea (Superfamily) Schuchert, 1893
	Larvacea (Class) Herdman, 1891 see (Class) Appendicularia Lahille, 1890
	Lingulata (Class) Gorjansky & Popov, 1985
	Lingulida (Order) Waagen, 1885
	Linguliformea (Subphylum) Williams et al., 1996
	Linguloidea (Superfamily) Menke, 1828
	†Lobopodia (Phylum) Snodgrass, 1938 - lobopodians
	†Naukatida (Order) Popov & Tikhonov, 1990
	†Naukatoidea (Superfamily) Popov & Tikhonov, 1990
	†Nisusioidea (Superfamily) Walcott & Schuchert, 1908
	†Obolellata (Class)
	†Obolellida (Order) Rowell, 1965
	†Obolelloidea (Superfamily) Walcott & Schuchert, 1908
	†Obolidae (Family) King, 1846
	†Orthida (Order) Schuchert & Cooper, 1932
	†Orthidina (Suborder) Schuchert & Cooper, 1932
	†Orthothecida (Order) Marek, 1966
	†Paterinata (Class) Williams et al, 1996
	†Paterinida (Order) Rowell, 1965
	†Paterinoidea (Superfamily) Schuchert, 1893
	†Pentamerida (Order) Schuchert & Cooper, 1931
	†Plectorthoidea (Superfamily) Schuchert & Le Vene, 1929
	†Porambonitoidea (Superfamily) Davidson, 1853
	†Procoelomata (Phylum) Bergström, 1989
	†Protorthida (Order) Schuchert & Cooper, 1931
	†Protorthoidea (Superfamily) Schuchert & Cooper, 1931
	Rhynchonellata (Class) Williams et al., 1996
	Rhynchonelliformea (Subphylum) Williams et al., 1996
	†Rostroconchia ([unranked]) Cox, 1960 see (Class) †Rostroconchia Pojeta et al., 1972
	†Syntrophiidina (Suborder) Ulrich & Cooper, 1936
	†Tabulata (Order) (Milne-Edwards & Haime, 1850)
	†Xenusia (Class) Dzik & Krumbiegel, 1989 - xenusians
	Within limits
	Anthozoa (Class) Ehrenberg, 1831
	Brachiopoda (Phylum) Duméril, 1806 - brachiopods
	Cnidaria (Phylum) Hatschek, 1888 - cnidarians
	†Conchopeltida (Order)
	†Conodonta (Phylum) Eichenberg, 1930 see (Subclass) †Conodonta Eichenberg, 1930
	†Conodontophorida (Class) Eichenberg, 1930 see (Order) †Conodontophorida Eichenberg, 1930
	†Conulata (Class) Moore & Harrington, 1956
	†Graptolithina (Class) Bronn, 1849
	Hydroida (Order) Johnston, 1836 see (Order) Anthoathecatae - hydroids
	Hydrozoa (Class) Owen, 1843
	†Hyolithes (Genus) Eichwald, 1840
	Monoplacophora (Class) Odhner, 1940 - monoplacophorans
	Octocorallia (Subclass) Haeckel, 1866 see (Subclass) Alcyonaria - octocorals
	†Orthotheca (Genus) Novák, 1887
	†Paraconodontida (Class) Müller, 1962 see (Order) †Paraconodontida Müller, 1962
	†Protomedusae (Class)
	Scyphomedusae (Group) see (Subclass) Scyphomedusae Lankaster, 1877
	Scyphozoa (Class) Goette, 1887 - jellyfish
	Trachylinida (Order) see (Order) Trachylina Haeckel, 1879
	Zoantharia (Subclass) de Blainville, 1830
	Animals (4)
	Entire range
	†Haikouichthys (Genus) Luo, Hu & Shu, 1999 see (Genus) †Myllokunmingia Shu, Zhang & Han, 1999
	†vetulicolians ([unranked]) see (Phylum) †Vetulicolia Shu, Conway Morris, Han, Chen, Zhang, Zhang, Liu, Li & Liu, 2001
	†yunnanozoans ([unranked]) see (Class) †Yunnanozoa Dzik, 1995
	Within limits
	Animalia (Kingdom) Linnaeus, 1758 - animals
	Algae (1)
	Within limits
	Prasinophyceae (Class) T. Christensen, 1962 ex Ø. Moestrup & J. Throndsen (1988) see ([unranked]) prasinophytes - prasinophytes
	Protozoa (5)
	Lower limit
	Foraminifera (Class) d'Orbigny, 1826 see (Phylum) Foraminifera d'Orbigny, 1826
	Within limits
	†Acritarcha (Group) Evitt, 1963 - acritarchs
	Foraminifera (Order) d'Orbigny, 1826 see (Class) Foraminifera d'Orbigny, 1826
	Foraminiferida (Order) d'Orbigny, 1826 see (Class) Foraminifera d'Orbigny, 1826 - foraminiferans
	textularids (Suborder) see (Order) Textulariida Delage & Hérouard, 1896
	Protists (2)
	Within limits
	Paleodictyon (Genus) Menghini, 1850
	Polycystinea (Class) Ehrenberg, 1838 see (Superclass) Polycystinia Ehrenberg, 1838 - polycystines
	Eukaryotes (4)
	Within limits
	Dinomastigota (Phylum) Margulis, 1996 see (Phylum) Dinoflagellata Engl. (1903)
	Eukarya (Superkingdom) Chatton, 1925 see (Domain) Eukaryota Chatton, 1925
	Eukaryota (Domain) Chatton, 1925 - eukaryotes
	Protoctista (Kingdom) Hogg, 1860
	Prokaryotes (4)
	Within limits
	Bacteria (Kingdom) (Cohn 1870) Cavalier-Smith 1983 see (Kingdom) Bacteria Cavalier-Smith 2002 - bacteria
	Bacteria (Kingdom) Cavalier-Smith 2002 see (Domain) Bacteria Woese et al. 1990 - bacteria
	Cyanobacteria (Phylum) (ex Stanier 1974) Cavalier-Smith 2002 - cyanobacteria
	Monera (Kingdom) Haeckel 1866 see (Domain) Bacteria Woese et al. 1990
	Organisms (2)
	Within limits
	†Archaeocopida (Order) Sylvester-Bradley, 1961 see ([unranked]) †Phosphatocopina Müller, 1964
	organisms ([unranked]) see (Clade) Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
	Lithostratigraphic units (1)
	Entire range
	Sinsk Formation (Formation) (Russia: Siberia)
	Geological regions (52)
	Within limits
	Aldan Shield (Geologic province)
	Anabar Shield ([unranked])
	Arabian-Nubian Shield ([unranked])
	Baikal Fold Belt ([unranked])
	†Baltic Plate ([unranked]) see (Tectonic plate) Eurasian Plate
	Baltic Shield ([unranked])
	Cameroon N'tem Complex ([unranked])
	Central Africa Craton ([unranked])
	Chaillu Craton ([unranked])
	Committee Bay Block ([unranked])
	Congo Craton ([unranked])
	Ethiopian Block ([unranked])
	†Gondwana ([unranked]) E. Suess, 1861
	Greenland Shield (Geologic province)
	Guapore Craton ([unranked])
	Guiana Shield ([unranked])
	Indian Shield (Geologic province)
	Kaapvaal Craton ([unranked])
	Kaminak Group ([unranked])
	Kasaï Craton ([unranked])
	Labrador Shield ([unranked])
	†Laurentia ([unranked])
	Litchfield Complex ([unranked])
	Luis Alves Massif ([unranked])
	Madagascar Craton ([unranked])
	Man Shield ([unranked])
	Nanambu Complex ([unranked])
	Pilbara Block (Geologic province)
	Reguibat Shield ([unranked])
	Rio de la Plata Craton ([unranked])
	Rio de la Plata Massif ([unranked])
	Rul Jungle Complex ([unranked])
	São Francisco Craton ([unranked])
	Sayan Fold Belt ([unranked])
	Scottish Shield ([unranked])
	Sebakwe Proto-Craton ([unranked])
	Sino-Korean Craton ([unranked]) see ([unranked]) North China Craton
	Slave Craton ([unranked])
	Slave Province ([unranked])
	Superior Craton ([unranked])
	Superior Province ([unranked])
	Tanzanian Craton ([unranked])
	Tarim Craton ([unranked])
	Tuareg Shield ([unranked])
	Ukrainian Shield (Geologic province)
	West African Craton ([unranked])
	Wyoming Province ([unranked])
	Yangtze Craton ([unranked])
	Yienisei Fold Belt ([unranked])
	Yilgarn Block (Geologic province)
	Zambian Block ([unranked])
	Zimbabwe Craton ([unranked])
	Geological entities (4)
	Within limits
	†Iapetus Ocean ([unranked])
	†Khanty Ocean ([unranked])
	Napier Complex ([unranked]) (Antarctica)
	†Proto-Tethys Ocean ([unranked])
Links
	http://www.palaeos.com/Paleozoic/Cambrian/EarlyCam.html