Classification of the genus Pachystrophia
G. †Pachystrophia Perner 1903
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†Pachystrophia balclatchiensis Longstaff 1924
†Pachystrophia contiguus Ulrich and Scofield 1897
†Pachystrophia devexa d'Eichwald 1859
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Invalid names: Pachystrophia dissoluta Koken and Perner 1925 [synonym]
†Pachystrophia dilatata Perner 1903
†Pachystrophia gotlandicus Lindström 1884
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Invalid names: Pachystrophia circinatus Whiteaves 1884 [synonym]
†Pachystrophia helicoides Koken 1896
†Pachystrophia inchoans Perner 1903
†Pachystrophia inornatum Whiteaves 1884
†Pachystrophia lescarboti Clarke 1908
†Pachystrophia mullockensis Longstaff 1924
†Pachystrophia orinini Wenjukov 1899
†Pachystrophia subuloidea Perner 1903
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Invalid names: Pachystrophia rigida Perner 1907 [synonym]
†Pachystrophia triquestra Lindström 1884
†Pachystrophia tuba Lindström 1884
†Pachystrophia vortex d'Eichwald 1856