Classification of Sahni 1940
G. †Holcothyris Buckman 1917
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†Holcothyris acuminata Buckman 1917
†Holcothyris ancile Reed 1927
†Holcothyris angulata Buckman 1917
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†Holcothyris angulata areolata Sahni 1940
†Holcothyris angulata depressa Sahni 1940
†Holcothyris cooperi Sahni 1940
†Holcothyris curvata Buckman 1917
†Holcothyris delta Buckman 1917
†Holcothyris depressa Sahni 1940
†Holcothyris dubia Buckman 1917
†Holcothyris elliptica Buckman 1917
†Holcothyris excavata Buckman 1917
†Holcothyris flexa Buckman 1917
†Holcothyris laosensis Mansuy 1920
†Holcothyris macra Buckman 1917
†Holcothyris micromorpha Sahni 1940
†Holcothyris orbicularis Sahni 1940
†Holcothyris ovata Sahni 1940
†Holcothyris ovoides Sahni 1940
†Holcothyris perplicata Sahni 1940
†Holcothyris plecta Buckman 1917
†Holcothyris raoi Sahni 1940
†Holcothyris rostrata Buckman 1917
†Holcothyris subangulata Buckman 1917
†Holcothyris subcurvata Sahni 1940
†Holcothyris subovalis Buckman 1917
†Holcothyris sulcata Buckman 1917
†Holcothyris transversalis Buckman 1917