Classification of Hoare and Sturgeon 1978
G. †Cyclozyga Knight 1930
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†Cyclozyga attenuata Hoare and Sturgeon 1978
†Cyclozyga mirabilis Knight 1930
G. †Helminthozyga Knight 1930
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†Helminthozyga costellata Hoare and Sturgeon 1978
†Helminthozyga undulata Hoare and Sturgeon 1978
Subg. †Pseudozygopleura (Leptozyga) Knight 1930
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†Pseudozygopleura (Leptozyga) minuta Knight 1930