Classification of the genus Leptarctus
G. †Leptarctus Leidy 1856
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†Leptarctus ancipidens White 1941
†Leptarctus martini Lim and Miao 2000
†Leptarctus mummorum Korth and Baskin 2009
†Leptarctus neimenguensis Zhai 1964
†Leptarctus oregonensis Stock 1930
†Leptarctus primus Leidy 1856
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Invalid names: Hypsoparia bozemanensis Dorr 1954 [synonym], Hypsoparia timmi Lim and Martin 2002 [synonym]
†Leptarctus progressus Simpson 1930
†Leptarctus supremus Lim et al. 2001
†Leptarctus webbi Baskin 2005
†Leptarctus woodburnei Bever and Zakrzewski 2009
†Leptarctus wortmani Matthew 1924
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Invalid names: Leptarctus (Pseudoleptarctus) genowaysi Lim and Martin 2003 [synonym], Leptarctus desuii Lim and Martin 2001 [synonym], Leptarctus kansasensis Lim and Martin 2001 [synonym]
Invalid names: Hypsoparia Dorr 1954 [synonym], Leptarctus (Pseudoleptarctus) Lim and Martin 2003 [invalid subgroup], Mephititaxus White 1941 [synonym]