Classification of the genus Cleionychia
G. †Cleionychia Ulrich 1892
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†Cleionychia attenuata Hall 1847
†Cleionychia corrugata Lindström 1880
†Cleionychia crebra Khalfin 1958
†Cleionychia crispa Khalfin 1958
†Cleionychia curta Foerste 1924
†Cleionychia excavata Ulrich 1895
†Cleionychia gibbosa Whiteaves 1908
†Cleionychia lamellosa Whitfield 1882
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Invalid names: Ambonychia erecta Hall 1861 [synonym], Ambonychia nitida Ulrich 1894 [synonym]
†Cleionychia marginalis Raymond 1905
†Cleionychia montrealensis Billings 1859
†Cleionychia mytiloides Hall 1847
†Cleionychia ottawaensis Whiteaves 1908
†Cleionychia oviformis Kobayashi 1934
†Cleionychia primitiva Isberg 1934
†Cleionychia pulchella Lindstrom 1880
†Cleionychia subundata Ulrich 1895
†Cleionychia superba Billings 1866
†Cleionychia traingularis Raasch in Shrock & Raasch 1937
†Clionychia curta Foerste 1924
†Clionychia rhomboidea Ulrich 1892
†Clionychia subundata Ulrich 1893
†Clionychia undata Emmons 1842
Invalid names: Anoptera Ulrich 1893 [synonym]