Classification of Landing et al. 2008

Unr. Metazoa Haeckel 1874
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Or. †Tommotiida Missarzhevsky 1970
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Fm. †Lapworthellidae Rozanov and Missarzhevsky 1966
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G. †Lapworthella Cobbold 1921
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†Lapworthella cornu Wiman 1903
†Lapworthella nigra Cobbold 1921
Or. †Hyolithelminthes Fischer 1962
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Fm. †Hyolithellidae Walcott 1886
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G. †Hyolithellus Billings 1872
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†Hyolithellus micans Billings 1871
†Hyolithellus sinuosus Cobbold 1921
Cl. †Trilobita Walch 1771 [trilobite]
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Or. †Agnostida Salter 1864
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Subor. †Agnostina Salter 1864
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Fm. †Spinagnostiidae Howell 1935
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G. †Cotalagnostus Whitehouse 1936
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†Cotalagnostus lens Grönwall 1902
Or. †Corynexochida Kobayashi 1935
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Superfm. †Corynexochidacea Angelin 1854
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G. †Chengkouidae Zhu 1980
Fm. †Dorypygidae Kobayashi 1935
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Subfm. †Dorypyginae Kobayashi 1935
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G. †Dorypyge Dames 1883
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†Dorypyge richthofeni Dames 1883
G. †Kootenia Walcott 1899
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†Kootenia dawsoni Walcott 1889
G. †Entomostracites Wahlenberg 1818
Or. †Ptychopariida Swinnerton 1915
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Superfm. †Ptychoparioidea Matthew 1887
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Fm. †Ptychopariidae Matthew 1887
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G. †Braintreella Wheeler 1942
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†Braintreella rogersi Walcott 1884
Invalid names: Solenopleuracea Angelin 1854 [empty]
Or. †Redlichiida Richter 1932
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Subor. †Redlichiina Richter 1932
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Superfm. †Ellipsocephaloidea Lin 1990
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Fm. †Ellipsocephalidae Matthew 1887
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Subfm. †Ellipsocephalinae Mathew 1887
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G. †Ornamentaspis Geyer 1990
Superfm. †Paradoxidoidea Hawle and Corda 1847
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Fm. †Paradoxididae Emmrich 1839
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G. †Paradoxides Brongniart 1822
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†Paradoxides paradoxissimus Wahlenberg 1821
Cl. Lingulata Gorjansky and Popov 1985
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Or. Lingulida Waagen 1885
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Superfm. Linguloidea Menke 1828
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G. †Lingulella Salter 1866
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†Lingulella davisii McCoy 1851
†Lingulella ferruginea Salter 1867
Fm. †Acrotretidae Schuchert 1893
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G. †Acrothyra Mathew 1901
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†Acrothyra proavia Matthew 1899
†Acrothyra sera Mathew 1902
Subph. Crustacea Brünnich 1772 [crustacean]
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Or. †Bradoriida Raymond 1935
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Fm. †Bradoriidae Mathew 1902
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G. †Bradoria Mathew 1899
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†Bradoria scrutator Mathew 1899
Or. †Arcotretida Kuhn 1949
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Invalid names: Arcotretidae Schuchert 1893 [empty]
Or. †Pseudoconodontida Landing 1995
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Fm. †Strictocorniculidae Landing 1995
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G. †Strictocorniculum Landing 1995
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Fm. †Chengkouiidae Zhu 1980
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G. †Acanthomicmacca Hupé 1953
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†Acanthomicmacca walcotti Matthew 1899