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species
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Animalia
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Mollusca
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Gastropoda
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Cephalaspidea
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Cylichnidae
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Adamnestia
Bogasonia
Cylichna
Cylichnella
Cylichnoides
Decorifer
Eocylichna
Mamillocylichna
Semiretusa
Sphaerocylichna
Toledonia
Truncacteocina
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Adamnestia