Classification of Hall 1852
G. †Bucania Hall 1847
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†Bucania angustata Hall 1852
†Bucania bellapuncta Hall 1852
†Bucania stigmosa Hall 1852
†Bucania trilobatus Conrad 1839
G. †Cyclonema Hall 1852
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Subg. †Cyclonema (Cyclonema) Hall 1852
†Cyclonema bilix Conrad 1842
†Cyclonema cancellata Hall 1847
†Cyclonema obsoleta Hall 1852
†Cyclonema sulcata Hall 1843
†Cyclonema ventricosa Hall 1852
G. †Murchisonia d'Archiac and de Verneuil 1841
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†Murchisonia bivittata Hall 1852
†Murchisonia loganii Hall 1852
†Murchisonia longispira Hall 1852
†Murchisonia macrospira Hall 1852
†Murchisonia major Hall 1852
†Murchisonia subulata Conrad 1842
†Murchisonia turritiformis Hall 1852
G. †Pleurotomaria Defrance 1826
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†Pleurotomaria bispiralis Hall 1852
†Pleurotomaria perlata Hall 1852
†Pleurotomaria pervetusta Conrad 1838
†Pleurotomaria solarioides Hall 1852
G. †Subulites Emmons 1842
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†Subulites abbreviatus Hall 1852
†Subulites ventricosus Hall 1852
Cl. †Articulata Huxley 1869
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G. †Platyostoma Conrad 1842
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†Platyostoma hemispherica Hall 1843
†Platyostoma niagarensis Hall 1852
G. †Acroculia Phillips 1841
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†Acroculia angulata Hall 1852
†Acroculia niagarensis Hall 1852