Classification of Yang and Shi 1987

G. †Holcothyris Buckman 1917
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†Holcothyris acuminata Buckman 1917
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Invalid names: Holcothyris pinguis Buckman 1917 [synonym], Holcothyris undulata Buckman 1917 [synonym]
†Holcothyris concava Buckman 1917
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Invalid names: Holcothyris excurvata Buckman 1917 [synonym], Holcothyris expansa Buckman 1917 [synonym], Holcothyris sulcata Buckman 1917 [synonym]
†Holcothyris delta Buckman 1917
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Invalid names: Holcothyris obscura Buckman 1917 [synonym]
†Holcothyris dubia Buckman 1917
†Holcothyris rostrata Buckman 1917
†Holcothyris rotundata Sahni 1940
†Holcothyris subovalis Buckman 1917
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Invalid names: Holcothyris flexa Buckman 1917 [synonym]
†Holcothyris trigonalis Buckman 1917
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Invalid names: Holcothyris transversalis Buckman 1917 [synonym]