Period: 536 million to 517 million years ago.
†Haikouichthys ercaicunensis Luo et al., 1999
†Myllokunmingia fengjiaoa
†Odontogriphus (Genus) Morris, 1976
†Odontogriphus omalus
Lower limit:
†Westergaardodina (Genus) Müller, 1959
Within limits:
†Distacodontina (Order)
Within limits:
Vertebrata (Subphylum) Cuvier, 1812 - vertebrates
Entire range:
†Canadaspis perfecta (Walcott, 1912)
†Waptia (Genus) Walcott, 1912
†Waptia fieldensis Walcott
Lower limit:
Phyllocarida (Subclass) Packard, 1879 - leptostracans
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
Upper limit:
†Liwia (Genus) Dzik & Lendzion, 1988
Entire range:
†Alokistocare (Genus) Lorenz, 1906
†Anomalocaris (Genus) Whiteaves, 1892
†Anomalocaris canadensis Whiteaves, 1892
†Bathyuriscus (Genus) Meek, 1873
†Branchiocaris (Genus) Briggs, 1976
†Cambropodus (Genus) Robison, 1990
†Canadaspis (Genus) Novozhilov, in Orlov, 1960
†Condylopyge regia (Sjögren, 1872)
†Eccaparadoxides pinus (Holm)
†Elrathia (Genus) Walcott, 1924
†Eodiscus scanicus (Linnarsson, 1883)
†Glossopleura (Genus) Poulsen, 1927
†Goniagnostus (Goniagnostus) nathorsti (Brögger, 1878)
†Leanchoilia superlata Walcott, 1912
†Lejopyge (Genus) Hawle & Corda, 1847
†Marrella (Genus) Walcott, 1912 - lace crab
†Marrella splendens Walcott
†Modocia (Genus)
†Naraoia compacta Walcott, 1912
†Odaraia (Genus) Walcott, 1912
†Odaraia alata Walcott
†Olenoides (Genus) Meek, 1877
†Olenoides serratus (Rominger, 1887)
†Opsidiscus (Genus) Westergard, 1949
†Opsidiscus argusi Jago, 1972
†Opsidiscus brevicaudatus Jell, 1975
†Opsidiscus microspinus Jell, 1975
†Opsidiscus teretistes Jell, 1975
†Oryctocephalus burgessensis Resser
†Pagetia (Genus) Walcott, 1916
†Pagetia bootes Walcott, 1916b
†Paradoxides (Genus) Brongniart, 1822
†Paradoxides gracilis (Boeck, 1827)
†Peronopsis (Genus) Hawle & Corda, 1847
†Perspicaris (Genus) Briggs, 1977
†Ptychagnostus (Genus) Jaekel, 1909
†Sidneyia (Genus) Walcott, 1911
†Sidneyia inexpectans Walcott, 1911
†Thoracocare (Genus) Robison & Campbell, 1974
†Zacanthoides (Genus) Walcott, 1888
†Zacanthoides romingeri Resser, 1942
Lower limit:
†Burlingiidae (Family)
†Naraoiidae (Family) Walcott, 1912
Within limits:
†Agnostida (Order) Salter, 1864
Arthropoda (Phylum) Latreille, 1829 - arthropods
†Chasmataspidida (Order) Caster & Brooks, 1956
Chelicerata (Superclass)
†Naraoia (Genus) Walcott, 1912
†Nektaspida (Order) Raymond, 1920 - nektaspids
Entire range:
†Costipelagiella (Genus) Horný, 1964
†Haplophrentis (Genus) Babcock & Robison, 1988
†Latouchella (Genus) Cobbold, 1921
†Scenella (Genus) Billings, 1872
†Yochelcionella (Genus) Runnegar & Pojeta, 1974
Within limits:
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
Upper limit:
†Palaeoscolex (Genus) Whittard, 1953
Entire range:
†Burgessochaeta (Genus) Conway Morris, 1979
†Canadia (Genus) Walcott, 1911
†Canadia spinosa Walcott
Lower limit:
Polychaeta (Class) Grube, 1850 - polychaetes
Upper limit:
†Chileida (Order)
†Kutorginata (Class)
†Kutorginida (Order)
†Kutorginoidea (Superfamily)
†Naukatida (Order)
†Naukatoidea (Superfamily)
†Nisusioidea (Superfamily)
†Obolellata (Class)
†Obolellida (Order)
†Obolelloidea (Superfamily)
†Protorthoidea (Superfamily)
†Xenusia (Class) Dzik & Krumbiegel, 1989 - xenusians
Entire range:
†Acanthotretella (Genus) Holmer & Caron, 2006
†Acanthotretella spinosa Holmer & Caron, 2006
†Amiskwia (Genus) Walcott, 1911
†Amiskwia sagittiformis Walcott, 1911
†Ancalagon (Genus) Conway Morris, 1977
†Aysheaia (Genus) Walcott, 1911
†Aysheaia pedunculata Walcott, 1911
†Brooksella (Genus) Walcott, 1898
†Choia (Genus) Walcott, 1920
†Choia carteri Walcott
†Cothoniida (Order)
†Cothonion (Genus) Jell & Jell, 1976
†Ctenocystoidea (Class)
†Ctenorhabdotidae (Family) Conway Morris & Collins, 1996
†Ctenorhabdotus (Genus) Conway Morris & Collins, 1996
†Ctenorhabdotus capulus Conway Morris & Collins, 1996
†Diagoniella (Genus) Rauff, 1894
†Diagoniella hinderi Walcott
†Dinomiscus (Genus)
†Echmatocrinus (Genus) Sprinkle, 1973
†Fasciculidae (Family) Conway Morris & Collins, 1996
†Fasciculus (Genus) Simonetta & Della Cave, 1978
†Fasciculus vesanus Simonetta & Della Cave, 1978
†Gogia (Genus) Walcott, 1917
†Hallucigenia (Genus) Conway Morris, 1977
†Hallucigenia sparsa Conway Morris, 1977
†Haplophrentis carinatus
†Homostelea (Class)
†Leanchoilia (Genus) Walcott, 1912
†Lichenoides (Genus) Barrande, 1846
†Opabinia (Genus) Walcott, 1912
†Opabinia regalis Walcott
†Ottoia (Genus) Walcott, 1911
†Ottoia prolifica Walcott
†Pikaia (Genus) Walcott, 1911
†Pikaia gracilens
†Pirania (Genus) Walcott, 1920
†Pirania muricata Walcott
†Rhabdotubus (Genus) Bengtson & Urbanek, 1986
†Takakkawia lineata Walcott
†Thaumaptilon (Genus)
†Thaumaptilon walcotti Conway Morris, 1993
†Wapkia grandis Walcott
†Wiwaxia (Genus) Walcott, 1911
†Wiwaxia corrugata (Matthew, 1899)
†Xanioascidae (Family) Conway Morris & Collins, 1996
†Xanioascus (Genus) Conway Morris & Collins, 1996
†Xanioascus canadensis Conway Morris & Collins, 1996
Lower limit:
†Anthaspidellidae (Family) Miller, 1889
†Astraeospongiidae (Family) de Laubenfels, 1955
†Billingsellida (Order)
†Billingsellidina (Suborder)
†Billingselloidea (Superfamily)
†Choiidae (Family) de Laubenfels, 1955
Crinoidea (Class) - sea lilies and feather stars
Ctenophora (Phylum) Eschscholtz, 1829 - comb jellies
†Dendroidea (Order)
†Hintzespongiidae (Family) Finks, 1983
†Hintzespongioidea (Suborder) Finks, 1983
Holothuroidea (Class) - sea cucumbers
†Homalozoa (Subphylum) Whitehouse, 1941
†Homoiostelea (Class)
†Orchocladina (Suborder) Rauff, 1893
†Orthoidea (Superfamily)
†Piraniidae (Family) de Laubenfels, 1955
Pterobranchia (Class) - pterobranchs
†Siphonotretida (Order)
†Siphonotretidae (Family)
†Siphonotretoidea (Superfamily)
†Sphinctozoa (Order)
†Strophomenata (Class)
†Stylophora (Class) - stylophorans
Within limits:
†Acrotheloidea (Superfamily)
Acrotretida (Order) Kuhn, 1949
†Acrotretoidea (Superfamily)
Amphidiscophora (Subclass) F.E. von Schulze, 1887
Annelida (Phylum) Lamarck, 1809 - segmented worms
Anthozoa (Class) Ehrenberg, 1831
Brachiopoda (Phylum) Duméril, 1806 - brachiopods
Calcarea (Class) Bowerbank, 1864 - calcareous sponges
Ceractinomorpha (Subclass) Lévi, 1973
†Chileata (Class)
Clionaidae (Family) d'Orbigny, 1851
Cnidaria (Phylum) Hatschek, 1888 - cnidarians
†Conchopeltida (Order)
†Conulata (Class) Moore & Harrington, 1956
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)
Demospongiae (Class) Sollas, 1875 - demosponges
†Dierespongioidea (Suborder) Rigby, 1976
Echinodermata (Phylum) Klein, 1734 ex De Brugière, 1789 - echinoderms
†Edrioasteroidea (Class)
†Eocrinoidea (Class)
†Graptolithina (Class)
Hadromerida (Order) Topsent, 1898
†Heteractinida (Order) Hinde, 1888
Hexactinellida (Class) O. Schmidt, 1870 - hexactinellids
Hydrozoa (Class) Owen, 1843
†Hyolithes (Genus) Eichwald, 1840
†Leptomitidae (Family) de Laubenfels, 1955
Lingulata (Class)
Lingulida (Order) Waagen, 1885
Linguliformea (Subphylum)
Linguloidea (Superfamily) Menke, 1828
Lithistida (Order) Schmidt, 1870 - lithistids
†Lobopodia (Phylum) Snodgrass, 1938 - lobopodians
Mollusca (Phylum) Linnaeus, 1758 - molluscs
Monoplacophora (Class) Odhner, 1940 - monoplacophorans
†Obolidae (Family)
†Orthida (Order) Schuchert & Cooper, 1932
†Orthidina (Suborder)
†Orthotheca (Genus)
†Orthothecida (Order) Marek, 1966
†Paterinata (Class)
†Paterinida (Order)
†Paterinoidea (Superfamily)
†Pentamerida (Order)
†Plectorthoidea (Superfamily)
†Porambonitoidea (Superfamily)
Porifera (Phylum) Grant, in Todd, 1836 - sponges
†Procoelomata (Phylum) Bergström, 1989
†Protomedusae (Class)
†Protorthida (Order)
†Protospongiidae (Family) Hinde, 1887
†Protospongioidea (Suborder) Finks, 1960
Pycnogonida (Class) Latreille, 1810 - pycnogonids
†Reticulosa (Order) Reid, 1958
†Rhizomorina (Suborder) Zittel, 1878
Rhynchonellata (Class)
Rhynchonelliformea (Subphylum)
Scyphozoa (Class) - jellyfish
†Syntrophiidina (Suborder)
†Tabulata (Order)
Tetractinomorpha (Subclass) Lévi
Verongida (Order) Bergquist
Zoantharia (Subclass)
Lower limit:
Chordata (Phylum) Bateson, 1885 - chordates
Within limits:
†Acritarcha Evitt, 1963 - acritarchs
Foraminifera (Class) Lee, 1990
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
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/MidCam.html