Period: 444 million to 428 million years ago.
†Pterospathodus (Genus) Walliser, 1964
Within limits:
†Anaspida (Order) - anaspids
†Distacodontina (Order)
†Hibbardellina (Order)
Within limits:
Vertebrata (Subphylum) Cuvier, 1812 - vertebrates
Within limits:
Bairdia (Genus) McCoy, 1844
Branchiopoda (Class) Latreille, 1817 - branchiopods
Cephalocarida (Class) H.L. Sanders, 1955 - cephalocarids
†Eurychilinidae (Family)
Lepadomorpha (Suborder) Pilsbry, 1916
†Leperditicopida (Order) Scott, 1961
Malacostraca (Class) Latreille, 1802
Myodocopida (Order) Sars, 1866
Ostracoda (Class) Latreille, 1802 - ostracods
Phyllocarida (Subclass) Packard, 1879 - leptostracans
Platycopida (Order) Sars, 1866
Podocopida (Order) (Sars, 1866) G.W. Müller, 1894
Entire range:
†Arctinurus (Genus) Castelnau, 1843
†Arctinurus boltoni (Bigsby, 1825)
Lower limit:
Scorpiones (Order) C.L. Koch, 1837 - scorpions
Within limits:
Arachnida (Class) Cuvier, 1812
Arthropoda (Phylum) Latreille, 1829 - arthropods
†Calymenina (Suborder)
†Calymenoidea (Superfamily)
†Chasmataspidida (Order) Caster & Brooks, 1956
Chelicerata (Superclass)
†Dalmanitidae (Family)
†Dalmanitoidea (Superfamily)
†Lichidae (Family)
†Naraoia (Genus) Walcott, 1912
†Naraoiidae (Family) Walcott, 1912
†Nektaspida (Order) Raymond, 1920 - nektaspids
†Phacopida (Order) Salter, 1864
†Phacopina (Suborder)
Progoneata
Scorpiones (Order) C.L. Koch, 1837 - scorpions
†Styginidae (Family)
†synziphosurines
†Trigonotarbida (Order) Petrunkevitch, 1949
Xiphosura (Class) Latreille, 1802 - horseshoe crabs
Xiphosurida (Order) Latreille, 1802
Upper limit:
†Ribeirioida (Order) Kobayashi, 1933
Entire range:
†Actinodonta (Genus) Phillips, 1848
Within limits:
†Actinoceratoidea (Subclass)
Bivalvia (Class) C. Linnaeus, 1758 - bivalves
†Bransonia (Genus) Pojeta & Runnegar, 1976
Cephalopoda (Class) Cuvier, 1797 - cephalopods
†Conocardioida (Order) Neumayr, 1891
†Cyrtonellida (Order)
Gastropoda (Class) Cuvier, 1795 - snails and slugs
†Hippocardia (Genus) Brown, 1843
†Hyolithida (Order) Matthew, 1899
†Murchisonia (Genus)
Nautiloidea (Subclass) Agassiz, 1847
Nautilus (Genus) C. Linnaeus, 1758
†Onychochilina (Suborder)
Patellina (Suborder) von Ihering, 1876
†Platyceras (Genus) Conrad, 1840
†Rostroconchia (Class) Pojeta et al., 1972
Scaphopoda (Class) Bronn, 1862 - tusk shells
Within limits:
Polychaeta (Class) Grube, 1850 - polychaetes
Upper limit:
†Climacograptus (Genus)
†Glyptograptus (Genus) Lapworth, 1873
†Glyptorthis (Genus) Foerste, 1912
†Paracrinoidea (Class)
†Platystrophia (Genus) King, 1850
†Porambonitoidea (Superfamily)
†Punctatrypoidea (Superfamily)
†Rostricellula (Genus) Ulrich & Cooper, 1942
Entire range:
†Climacograptus scalaris
†Coronograptus (Genus)
†Coronograptus cyphus
†Dalejina (Genus) Havlicek, 1953
†Dalejina junonis Li & Copper, 2006
†Diceromyonia (Genus) Wang, 1946
†Diceromyonia ciona Li & Copper, 2006
†Dimorphograptus (Genus) Lapworth, 1876
†Dimorphograptus confertus
†Dimorphograptus confertus swanstoni
†Flabellitesia (Genus) Ning Zhang, 1989
†Flabellitesia adaia Li & Copper, 2006
†Glyptograptus persculptus
†Glyptorthis marilara Li & Copper, 2006
†Heterorthina (Genus) Bancroft, 1928
†Heterorthina cybele Li & Copper, 2006
†Isorthis (Genus) Kozlowski, 1929
†Isorthis natiscotekia Li & Copper, 2006
†Isorthis subg. Ovalella
†Jupiterella (Genus) Li & Copper, 2006
†Jupiterella eumorpha Li & Copper, 2006
†Levenea (Genus) Schuchert & Cooper, 1931
†Levenea mera Li & Copper, 2006
†Levenea rica Li & Copper, 2006
†Mendacella (Genus) Cooper, 1930
†Mendacella udauberis Li & Copper, 2006
†Parakidograptus (Genus) Li & Ge, 1981
†Parakidograptus acuminatus
†Pionodema (Genus) Foerste, 1912
†Pionodema hypermeca Li & Copper, 2006
†Plasmopora (Genus) Milne-Edwards & Haime, 1849
†Platystrophia hongueda Li & Copper, 2006
†Platystrophia regularis
†Platystrophia regularis aporegularis Li & Copper, 2006
†Platytrochalos (Genus) Jin, 1989
†Platytrochalos rabbei Thomsen et al., 2006
†Platytrochalos ringerikensis Thomsen et al., 2006
†Rostricellula wadti Thomsen et al., 2006
Lower limit:
†Athyridoidea (Superfamily)
†Camarotoechioidea (Superfamily)
†Delthyridina (Suborder)
†Delthyridoidea (Superfamily)
†Gypiduloidea (Superfamily)
†Reticularioidea (Superfamily) Waagen, 1883
†Retzielloidea (Superfamily)
†Retziidina (Suborder)
†Retzioidea (Superfamily)
†Rhynchospirinoidea (Superfamily)
†Stricklandioidea (Superfamily)
†Uncinuloidea (Superfamily)
Within limits:
Acrotretida (Order) Kuhn, 1949
†Acrotretoidea (Superfamily)
†Adolfioidea (Superfamily)
Amphidiscophora (Subclass) F.E. von Schulze, 1887
Amphidiscosida (Order) Schrammen
†Anazygidina (Suborder)
†Anazygoidea (Superfamily)
†Ancistrorhynchoidea (Superfamily)
Annelida (Phylum) Lamarck, 1809 - segmented worms
†Anthaspidellidae (Family) Miller, 1889
Anthozoa (Class) Ehrenberg, 1831
Asteroidea (Class) - sea stars
†Astraeospongiidae (Family) de Laubenfels, 1955
†Astylospongiidae (Family) Rauff, 1893
†Athyridida (Order)
†Athyrididina (Suborder)
†Atrypida (Order)
†Atrypidina (Suborder)
†Atrypoidea (Superfamily)
†Blastoidea (Class)
Brachiopoda (Phylum) Duméril, 1806 - brachiopods
Calcarea (Class) Bowerbank, 1864 - calcareous sponges
†Camerates (Subclass)
†Camerelloidea (Superfamily)
Ceractinomorpha (Subclass) Lévi, 1973
†Chiastoclonellidae (Family) de Laubenfels, 1955
†Chileata (Class)
†Chilidiopsoidea (Superfamily)
†Chonetidina (Suborder)
†Chonetoidea (Superfamily) Bronn, 1862
Clionaidae (Family) d'Orbigny, 1851
†Cnemidiastridae (Family) Schrammen, 1936
Cnidaria (Phylum) Hatschek, 1888 - cnidarians
†Conulariida (Order) Miller & Gurley, 1896
†Conulata (Class) Moore & Harrington, 1956
Craniata (Class) Williams, Carlson, Brunton, Holmer & Popov, 1996
Craniida (Order) Waagen, 1885
Craniidae (Family) Menke, 1828
Craniiformea (Subphylum) Popov, Bassett, Holmer & Laurie, 1993
Cranioidea (Superfamily) Menke, 1828
†Craniopsida (Order) Gorjansky & Popov, 1985
†Craniopsidae (Family) Williams, 1963
†Craniopsoidea (Superfamily) Williams, 1963
Crinoidea (Class) - sea lilies and feather stars
†Crustoidea (Order)
†Cryptostomata (Order)
Ctenophora (Phylum) Eschscholtz, 1829 - comb jellies
Ctenostomata (Order) Busk, 1852
†Cyclocystoidea (Class)
†Cyrtioidea (Superfamily) Fredericks, 1919
†Cystoporata (Order)
†Dalmanellidina (Suborder)
†Dalmanelloidea (Superfamily)
Demospongiae (Class) Sollas, 1875 - demosponges
†Dendroidea (Order)
†Dictyonellida (Order)
†Dictyospongiidae (Family) Hall, 1882
†Dictyospongioidea (Suborder) Hall & Clarke, 1899
†Dierespongioidea (Suborder) Rigby, 1976
†Diploporita (Class)
Discinidae (Family)
Discinoidea (Superfamily)
†Echinocystitoida (Order)
Echinodermata (Phylum) Klein, 1734 ex De Brugière, 1789 - echinoderms
Echinoidea (Class) - sea urchins and sand dollars
Ectoprocta (Phylum) Nitsche, 1870 - ectoprocts
†Edrioasteroidea (Class)
†Eichwaldioidea (Superfamily)
†Enteletoidea (Superfamily)
†Eocrinoidea (Class)
†Eurypterida (Order) Burmeister, 1843 - eurypterids
†Fenestella (Genus) Lonsdale, 1839
†Fenestrata (Order)
†Flexibles (Subclass)
†Graptolithina (Class)
†Graptoloidea (Order)
Gymnolaemata (Class)
Hadromerida (Order) Topsent, 1898
†Haplistiidae (Family) de Laubenfels, 1955
†Heliolitida (Order)
Hemichordata (Phylum) (Bateson, 1885) auct. - hemichordates
†Heteractinida (Order) Hinde, 1888
Hexactinellida (Class) O. Schmidt, 1870 - hexactinellids
Hexasterophora (Subclass) F.E. von Schulze, 1887
Holothuroidea (Class) - sea cucumbers
†Homalozoa (Subphylum) Whitehouse, 1941
†Homoiostelea (Class)
Hydrozoa (Class) Owen, 1843
†Hyolithes (Genus) Eichwald, 1840
†Inadunates (Subclass)
Lingulata (Class)
Lingulida (Order) Waagen, 1885
Linguliformea (Subphylum)
Linguloidea (Superfamily) Menke, 1828
†Lissatrypidina (Suborder)
†Lissatrypoidea (Superfamily)
Lithistida (Order) Schmidt, 1870 - lithistids
†Lobopodia (Phylum) Snodgrass, 1938 - lobopodians
Lyssacinosida (Order) (Zittel, 1877) W.D. Hartman, in S.P. Parker, 1982
†Meristelloidea (Superfamily)
Mollusca (Phylum) Linnaeus, 1758 - molluscs
Monoplacophora (Class) Odhner, 1940 - monoplacophorans
†Nucleospiroidea (Superfamily)
†Obolidae (Family)
†Ophiocistioidea (Class)
Ophiuroidea (Class) - brittle stars and basket stars
†Orchocladina (Suborder) Rauff, 1893
†Orthida (Order) Schuchert & Cooper, 1932
†Orthidina (Suborder)
†Orthoidea (Superfamily)
†Orthotetida (Order)
†Orthotetidina (Suborder)
†Orthotheca (Genus)
†Orthothecida (Order) Marek, 1966
†Pentamerida (Order)
†Pentameridina (Suborder)
†Pentameroidea (Superfamily)
Platyasterida (Order)
†Plectambonitoidea (Superfamily)
†Plectorthoidea (Superfamily)
Polyplacophora (Class) Blainville, 1816 - chitons
Porifera (Phylum) Grant, in Todd, 1836 - sponges
†Procoelomata (Phylum) Bergström, 1989
†Protorthida (Order)
†Protospongiidae (Family) Hinde, 1887
†Protospongioidea (Suborder) Finks, 1960
Pterobranchia (Class) - pterobranchs
Pycnogonida (Class) Latreille, 1810 - pycnogonids
†Reticulosa (Order) Reid, 1958
†Rhizomorina (Suborder) Zittel, 1878
†Rhombifera (Class)
Rhynchonellata (Class)
Rhynchonellida (Order)
Rhynchonelliformea (Subphylum)
†Rhynchotrematoidea (Superfamily)
†Rugosa (Order)
Scyphozoa (Class) - jellyfish
†Skenidioidea (Superfamily) Kozlowski, 1929
†Sphaerocladina (Suborder) Schrammen, 1910
†Sphinctozoa (Order)
†Spiriferida (Order) Waagen, 1883
†Spiriferidina (Suborder) Waagen, 1883
Stenolaemata (Class)
†Stromatopora (Genus) Goldfuss, 1826
†Strophomenata (Class)
†Strophomenida (Order) Opik, 1934
†Strophomenoidea (Superfamily)
†Stylophora (Class) - stylophorans
†Syntrophiidina (Suborder)
†Tabulata (Order)
Tetracladina (Suborder) Zittel, 1878
Tetractinomorpha (Subclass) Lévi
†Trepostomata (Order) Ulrich, 1882
†Trimerellida (Order)
†Trimerelloidea (Superfamily)
†Triplesiidina (Suborder)
†Triplesioidea (Superfamily)
Tubuliporata (Order)
Verongida (Order) Bergquist
Zoantharia (Subclass)
Within limits:
Chordata (Phylum) Bateson, 1885 - chordates
†Stromatoporoidea (Class) Nicholson & Murie
Within limits:
Glomeromycota (Phylum) C. Walker & A. Schüßler, in A. Schüßler et al., 2001 - arbuscular mycorrhizal fungi
Within limits:
Plantae (Kingdom) Haeckel, 1866 - plants
Lower limit:
†Comasphaeridium (Genus) Staplin, Jansonius & Pocock, 1965
†Comasphaeridium williereae (Deflandre & Deflandre-Rigaud, 1965 ex Lister, 1970) Sarjeant & Stancliffe, 1994
†Dateriocradus (Genus) Tappan & Loeblich, 1972
†Dateriocradus monterrosae (Cramer, 1969) Pöthé de Baldis, 1981
Within limits:
†Buedingiisphaeridium (Genus) Schaarschmidt, 1963 emend. Lister, 1970 emend. Sarjeant & Stancliffe, 1994
Charales (Order) Lindley, 1836 - charophytes sensu stricto
Charales (Order) Lindley, 1836 - stoneworts
†Comasphaeridium brevispinosum (Lister, 1970) Mullins, 2001
†Cymatiosphaera multisepta Deunff, 1955
†Cymatiosphaera octoplana Downie, 1959
†Cymbosphaeridium (Genus) Lister, 1970
†Cymbosphaeridium pilar (Cramer, 1964) Lister, 1970
Dasycladaceae (Family) Kützing, 1843
Dasycladales (Order) Pascher, 1931
†Dictyotidium biscutulatum Kiryanov, 1978
†Dictyotidium faviforme Schultz, 1967
†Diexallophasis (Genus) Loeblich, 1970
†Diexallophasis remota (Deunff, 1955)
†Dorsennidium (Genus) Wicander, 1974
†Dorsennidium europaeum (Stockmans & Willière, 1960) Sarjeant & Stancliffe, 1994
†Dorsennidium europaeum subsp. europaeum (Stockmans & Willière, 1960) Sarjeant & Stancliffe, 1994
†Dorsennidium europaeum subsp. wenlockianum (Downie, 1959 ex Wall & Downie, 1963) Sarjeant & Stancliffe, 1994
†Duvernaysphaera aranaides (Cramer, 1964) Le Hérissé, 1989
†Eisenackidium (Genus) Cramer & Díez, 1968 ex Eisenack, Cramer & Díez, 1973
†Eupoikilofusa (Genus) Cramer, 1970
†Gorgonisphaeridium (Genus) Staplin, Jansonius & Pocock, 1965
†Hapsidopalla (Genus) Playford, 1977
†Micrhystridium (Genus) Deflandre, 1937
†Multiplicisphaeridium (Genus) Staplin, 1961
†Neoveryhachium (Genus) Cramer, 1970
†Neoveryhachium carminae (Cramer, 1964)
†Onondagella (Genus) Cramer, 1966
†Oppilatala (Genus) Loeblich & Wicander, 1976
†Quadratitum fantasticum Cramer, 1964
†Tunisphaeridium (Genus) J. Deunff & W.R. Evitt, 1968
Upper limit:
†Cyathochitina (Genus) Eisenack,1955
†Spinachitina (Genus) Schallreuter, 1963
†Spinachitininae (Subfamily) Paris, 1981
Within limits:
†Acritarcha Evitt, 1963 - acritarchs
†Ancyrochitina (Genus) Eisenack, 1955
†Ancyrochitininae (Subfamily) Paris, 1981
†Angochitina (Genus) Eisenack, 1931
†Angochitininae (Subfamily) Paris, 1981
†Armoricochitina (Genus) Paris, 1981
†Bursachitina (Genus) Taugourdeau, 1966
†Calpichitina (Genus) Wilson & Hedlund, 1964
†Chitinozoa - chitinozoans
†Cingulochitina (Genus) Paris, 1981
†Cyathochitininae (Subfamily) Paris, 1981
†Desmochitina (Genus) Eisenack, 1931
†Desmochitinidae (Family) Eisenack, 1931
†Desmochitininae (Subfamily) (Eisenack, 1931) Paris, 1981
†Eisenackitina (Genus) Jansonius, 1964
Foraminifera (Class) Lee, 1990
†Fungochitina (Genus) Taugourdeau, 1966
†Lagenochitina (Genus) Eisenack, 1931
†Lagenochitinidae (Family) Eisenack, 1931
†Lagenochitininae (Subfamily) (Eisenack, 1931) Paris, 1981
†Linochitina (Genus) Eisenack, 1968
†Margachitina (Genus) Eisenack, 1968
†Margachitininae (Subfamily) Paris, 1981
†Operculatifera (Order) Eisenack, 1931
Paleodictyon (Genus) Menghini, 1850
Polycystinea (Class) - polycystines
†Prosomatifera (Order) Eisenack, 1972
†Pterochitina (Genus) Eisenack, 1955
†Pterochitininae (Subfamily) Paris, 1981
†Ramochitina (Genus) Sommer & van Boekel, 1964
†Sphaerochitina (Genus) Eisenack,1955
Spirotrichea (Class) Bütschli, 1889
†Urnochitina (Genus) Paris, 1981
Within limits:
Animalia (Kingdom) Linnaeus, 1758 - animals
Eukaryota (Domain) Chatton, 1925 - eukaryotes
Fungi (Kingdom) T.L. Jahn & F.F. Jahn, 1949 ex R.T. Moore, 1980 - fungi
Within limits:
Cyanobacteria (Phylum) Stanier, 1974 ex Cavalier-Smith, 2002 - cyanobacteria
Within limits:
Biota
Within limits:
Aldan Shield
Anabar Shield
Arabian-Nubian Shield
†Armorica
Baikal Fold Belt
Baltic Shield
Cameroon N'tem Complex
Central Africa Craton
Chaillu Craton
Committee Bay Block
Congo Craton
Ethiopian Block
†Euramerica
†Gondwana E. Suess, 1861
Greenland Shield
Guapore Craton
Guiana Shield
†Iapetus Ocean
Indian Shield
Kaapvaal Craton
Kaminak Group
Kasaï Craton
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/Silurian/Silurian.htm