Classification of Owen and Harper 1982

Or. †Acrotretida Kuhn 1949
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Subor. †Acrotretidina Kuhn 1949
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Superfm. †Discinacea Gray 1840
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Fm. †Discinidae Gray 1840
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Subfm. †Orbiculoideinae Schuchert 1929
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G. †Orbiculoidea d'Orbigny 1847
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Orbiculoidea forbesi Davidson 1848
Or. †Orthida Schuchert and Cooper 1932
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Subor. †Orthidina Schuchert and Cooper 1932
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Superfm. †Enteletacea Waagen 1884
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Fm. †Dalmanellidae Schuchert 1913
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G. †Dalmanellid Owen and Harper 1982
Superfm. †Orthacea Woodward and Schuchert 1852
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Fm. †Orthidae Woodward 1852
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Subfm. †Productorthinae Schuchert and Cooper 1931
Fm. †Plectorthidae Schuchert and Le Vene 1929
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Subfm. †Plectorthinae Schuchert and Le Vene 1929
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G. †Plectorthis Hall and Clarke 1892
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Subfm. †Rhactorthinae Williams 1963
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G. †Rhactorthis Williams 1963
Superfm. †Triplesiacea Schuchert 1913
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Fm. †Triplesiidae Schuchert 1913
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G. †Oxoplecia Wilson 1913
G. †Triplesia Hall 1859
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Triplesia extans Emmons 1842
Or. †Strophomenida Opik 1933
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Superfm. †Plectambonitacea Jones 1928
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Fm. †Sowerbyellidae Opik 1930
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Subfm. †Sowerbyellinae Opik 1930
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G. †Sowerbyella Jones 1928
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Sowerbyella sericea Sowerby 1839
Superfm. †Strophomenacea King 1846
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Fm. †Leptaenidae Hall and Clarke 1894
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G. †Leptaena Dalman 1828
Fm. †Strophomenidae King 1846
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Subfm. †Rafinesquininae Schuchert 1893
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G. †Hedstroemina Bancroft 1929
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Hedstroemina ungula Spjeldnaes 1957
G. †Kjerulfina Bancroft 1929
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Kjerulfina foliovalve Spjeldnaes 1957
Subfm. †Strophomeninae King 1846
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G. †Strophomena Rafinesque and De Blainville 1824
Or. †Pentamerida Schuchert and Cooper 1931
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Subor. †Syntrophiidina Ulrich and Cooper 1936
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Superfm. †Porambonitacea Davidson 1853
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Fm. †Parastrophinidae Ulrich and Cooper 1938
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G. †Parastrophinella Schuchert and Cooper 1931
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Parastrophinella reversus Billings 1857
Fm. †Proetidae Salter 1864
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Subfm. †Tropidocoryphinae Pribyl 1946
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G. †Decoroproetus Pribyl 1946
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Decoroproetus decorus Barrande 1846
Fm. †Aulacopleuridae Angelin 1854
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Subfm. †Aulacopleurinae Angelin 1854
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G. †Harpidella McCoy 1849
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Harpidella megalops McCoy 1846
Fm. †Odontopleuridae Burmeister 1843
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Subfm. †Apianurinae Whittington 1956
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G. †Apianurus Whittington 1956
Fm. †Trinucleidae Hawle and Corda 1847
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Subfm. †Cryptolithinae Angelin 1854
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G. †Broeggerolithus Lamont 1935
Fm. †Encrinuridae Angelin 1854
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Subfm. †Cybelinae Holliday 1942
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G. †Atractopyge Hawle and Corda 1847
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Atractopyge verrucosa Dalman 1827
Fm. †Remopleurididae Hawle and Corda 1847
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G. †Remopleurides Portlock 1843
Fm. †Lichidae Hawle and Corda 1847
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Subfm. †Homolichinae Phleger 1936
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G. †Platylichas G├╝rich 1901
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Platylichas margaritifer Nieszkowski 1857
Fm. †Illaenidae Hawle and Corda 1847
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G. †Stenopareia Holm 1886
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Fm. †Raphiophoridae Angelin 1854
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G. †Lonchodomas Angelin 1854
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Lonchodomas rostratus Sars 1835
Fm. †Pterygometopidae Reed 1905
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Subfm. †Chasmopinae Pillet 1954
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G. †Toxochasmops McNamara 1979
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Toxochasmops extensus Boeck 1838