Classification of Walcott 1905

Ph. Brachiopoda Cuvier 1805 [lamp shell]
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G. †Iphidella Walcott 1905
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†Iphidella major Walcott 1905
†Iphidella nisus Walcott 1905
†Iphidella prospectensis Walcott 1884
†Iphidella sculptilis Meek 1873
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†Dicellomus appalachia Walcott 1905
†Dicellomus nanus Meek and Hayden 1862
†Dicellomus parvus Walcott 1905
†Dicellomus pectenoides Whitfield 1875
†Dicellomus politus Hall 1861
G. †Elkania Ford 1886
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†Elkania bellula Walcott 1905
G. †Obolus Eichwald 1829
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Subg. †Obolus (Lingulepis) Hall 1863
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†Obolus (Lingulepis) eros Walcott 1905
†Obolus (Lingulepis) rowei Walcott 1905
†Obolus acadica Walcott 1905
†Obolus ismene Walcott 1905
†Obolus matinalis Hall 1863
†Obolus minimus Walcott 1905
†Obolus nundina Walcott 1905
†Obolus obscurus Walcott 1905
†Obolus pheres Walcott 1905
†Obolus shensiensis Walcott 1905
†Obolus tetonensis Walcott 1905
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†Obolus tetonensis ninus Walcott 1905
G. †Acrothele Linnarsson 1876
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†Acrothele minuta Walcott 1905
†Acrothele rarus Walcott 1905
G. †Acrothyra Mathew 1901
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†Acrothyra minor Walcott 1905
G. †Acrotreta Kutorga 1848
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†Acrotreta attenuata Meek 1873
†Acrotreta bisecta Matthew 1901
†Acrotreta cancellata Walcott 1905
†Acrotreta emmonsi Walcott 1905
†Acrotreta liani Walcott 1905
†Acrotreta neboensis Walcott 1905
†Acrotreta nox Walcott 1905
†Acrotreta pacifica Walcott 1905
†Acrotreta shantungensis Walcott 1905
†Acrotreta spinosa Walcott 1905
†Acrotreta uplandensis Wiman 1903
G. †Curticia Walcott 1905
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†Curticia elegantula Walcott 1905
G. †Kutorgina Billings 1861
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†Kutorgina cingulata Billings 1861
†Kutorgina perugata Walcott 1905
†Kutorgina sardiniaensis Walcott 1905
G. †Quebecia Walcott 1905
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†Quebecia circe Billings 1872
G. †Rustella Walcott 1905
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†Rustella edsoni Walcott 1905
G. †Schuchertina Walcott 1905
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†Schuchertina cambria Walcott 1905
G. †Obolella Billings 1861
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†Obolella asiatica Walcott 1905
G. †Billingsella Hall and Clarke 1892
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Subg. †Billingsella (Otusia) Walcott 1905
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†Billingsella anomala Walcott 1905
†Billingsella appalachia Walcott 1905
†Billingsella dice Walcott 1905
†Billingsella exporrecta Linnarsson 1876
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†Billingsella harlanensis Walcott 1905
†Billingsella hicksi Davidson 1868
†Billingsella lindstromi Linarsson 1876
†Billingsella major Walcott 1905
†Billingsella obscura Walcott 1905
†Billingsella orientalis Whitfield 1884
†Billingsella plicatella Walcott 1905
†Billingsella pumpellyi Walcott 1905
†Billingsella richthofeni Walcott 1905
†Billingsella romingeri Barrande 1848
†Billingsella saffordi Walcott 1905
†Billingsella salemensis Walcott 1887
†Billingsella striata Walcott 1905
†Billingsella whitfieldi Walcott 1884
G. †Nisusia Walcott 1905
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Subg. †Nisusia (Jamesella) Walcott 1905
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†Nisusia (Jamesella) amii Walcott 1905
†Nisusia (Jamesella) kuthani Pompeckj 1896
†Nisusia alberta Walcott 1889
†Nisusia festinata Billings 1861
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G. †Orthis Dalman 1828
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Subg. †Orthis (Orusia) Walcott 1905
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†Polytoechia montanensis Walcott 1905
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Subg. †Protorthis (Loperia) Walcott 1905
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†Protorthis billingsi Hartt 1868
†Protorthis helena Walcott 1905
†Protorthis laevis Walcott 1905
†Protorthis latourensis Matthew 1886
†Protorthis nautes Walcott 1905
†Protorthis nunnebergensis Walcott 1905
†Protorthis quacoensis Matthew 1886
†Protorthis spencei Walcott 1905
†Protorthis wingi Walcott 1905
G. †Strophomena Rafinesque and De Blainville 1824
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Subg. †Strophomena (Eostrophomena) Walcott 1905
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†Syntrophia abnormis Walcott 1905
†Syntrophia alata Walcott 1905
†Syntrophia barabuensis Winchell 1864
†Syntrophia billingsi Walcott 1905
†Syntrophia nundina Walcott 1905
†Syntrophia orientalis Walcott 1905
†Syntrophia primordialis Whitfield 1877
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†Syntrophia rotundata Walcott 1905
†Syntrophia texana Walcott 1905
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G. †Swantonia Walcott 1905
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†Swantonia antiquata Billings 1861
†Swantonia weeksi Walcott 1905
Subg. †Obolus (Lingulella) Salter 1866
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†Obolus (Lingulella) isse Walcott 1905
†Obolus (Lingulella) orus Walcott 1905
†Obolus (Lingulella) upis Walcott 1905
Subg. †Obolus (Westonia) Walcott 1901
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†Obolus (Westonia) baltica Walcott 1905
†Obolus (Westonia) iphis Walcott 1905
†Obolus (Westonia) themis Walcott 1905
†Obolus (Westonia) wimani Walcott 1905