Classification of the genus Plethospira
G. †Plethospira Ulrich and Scofield 1897
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†Plethospira arenaria Billings 1859
†Plethospira caledoniensis Longstaff 1924
†Plethospira cannonensis Stauffer 1937
†Plethospira cassina Whitfield 1886
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Invalid names: Plethospira subangulata Flower 1968 [synonym]
†Plethospira difficilis Whitfield 1890
†Plethospira emanuelensis Yu 1993
†Plethospira extensa Heller 1954
†Plethospira floweri Fortey and Peel 1990
†Plethospira rotunda Flower 1968
Invalid names: Seelya Ulrich and Scofield 1897 [synonym]