Classification of Hoover 1991

G. †Dagyspirifer Hoover 1991
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G. †Phenacozugmayerella Hoover 1991
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G. †Pseudospondylospira Hoover 1991
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G. †Spondylospira Cooper 1942
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†Spondylospira tricosta Hoover 1991
G. †Zugmayerella Dagys 1963
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†Zugmayerella americana Hoover 1991