Classification of Phleger, Jr. 1933
Ph. Arthropoda Latreille 1829 [arthropod]
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Unr. †Molluscoidea
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Cl. Brachiopoda Cuvier 1805 [lamp shell]
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Or. †Protremata Beecher 1891
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Superfm. †Orthacea Woodward and Schuchert 1852
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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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†Plectorthis mazourkaensis Phleger, Jr. 1933
†Plectorthis patulus Phleger, Jr. 1933
Invalid names: Strophomenacea King 1846 [empty]