Classification of the family Periptychidae

Fm. †Periptychidae Cope 1882 [condylarth]
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G. †Alticonus Eberle and Lillegraven 1998
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†Alticonus gazini Eberle and Lillegraven 1998
G. †Ampliconus Eberle and Lillegraven 1998
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†Ampliconus antoni Eberle and Lillegraven 1998
†Ampliconus browni Eberle and Lillegraven 1998
Subfm. †Anisonchinae Osborne and Earle 1895
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G. †Haploconus Cope 1882
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†Haploconus angustus Cope 1881
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Invalid names: Haploconus corniculatus Cope 1888 [synonym], Haploconus inopinatus Gazin 1939 [synonym], Haploconus xiphodon Cope 1882 [synonym]
†Haploconus elachistus Gazin 1941
†Haploconus entoconus Cope 1882
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Invalid names: Anisonchus coniferus Cope 1882 [synonym]
†Haploconus lineatus Cope 1882
G. †Pseudanisonchus Zhang et al. 1979
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†Pseudanisonchus antelios Zhang et al. 1979
G. †Anisonchus Cope 1881
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†Anisonchus athelas Van Valen 1978
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Invalid names: Anisonchus eowynae Van Valen 1978 [synonym]
†Anisonchus fortunatus Simpson 1932
†Anisonchus oligistus Gazin 1941
†Anisonchus onostus Gazin 1939
†Anisonchus sectorius Cope 1881
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Invalid names: Anisonchus dracus Gazin 1939 [synonym], Mioclaenus mandibularis Cope 1881 [synonym], Zetodon gracilis Cope 1883 [synonym]
†Anisonchus willeyi Rigby, Jr. 1980
Invalid names: Zetodon Cope 1883 [synonym]
G. †Auraria Middleton and Dewar 2004
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†Auraria urbana Middleton and Dewar 2004
G. †Beornus Atteberry and Eberle 2021
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†Beornus honeyi Atteberry and Eberle 2021
G. †Conacodon Matthew 1897
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†Conacodon cophater Cope 1884
†Conacodon delphae Eberle and Lillegraven 1998
†Conacodon harbourae Eberle and Lillegraven 1998
†Conacodon hettingeri Atteberry and Eberle 2021
†Conacodon kohlbergeri Archibald et al. 1983
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Invalid names: Conacodon utahensis Robison 1986 [synonym]
†Conacodon matthewi Middleton and Dewar 2004
G. †Escatepos Reynolds 1936
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†Escatepos campi Reynolds 1936
G. †Goleroconus McKenna and Honey 2008
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†Goleroconus alfi McKenna and Honey 2008
G. †Hemithlaeus Cope 1882
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†Hemithlaeus josephi Van Valen 1978
G. †Miniconus Atteberry and Eberle 2021
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†Miniconus archibaldi Middleton and Dewar 2004
†Miniconus jeanninae Atteberry and Eberle 2021
G. †Mithrandir Cifelli 1983
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†Mithrandir gillianus Cope 1882
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Invalid names: Anisonchus apiculatus Cope 1884 [synonym]
Invalid names: Gillisonchus Rigby 1981 [synonym]
G. †Oxyacodon Osborn and Earle 1895
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†Oxyacodon agapetillus Cope 1884
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Invalid names: Fimbrethil ambaronae Van Valen 1978 [synonym]
†Oxyacodon apiculatus Osborn and Earle 1895
†Oxyacodon ferronensis Archibald et al. 1983
†Oxyacodon marshater Van Valen 1978
†Oxyacodon priscilla Matthew 1937
Invalid names: Fimbrethil Van Valen 1978 [synonym]
G. †Paleoungulatum Kelly 2014
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†Paleoungulatum hooleyi Kelly 2014
Subfm. †Periptychinae Osborn and Earle 1895
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G. †Ectoconus Cope 1884
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†Ectoconus cavigellii Eberle and Lillegraven 1998
†Ectoconus ditrigonus Cope 1882
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Invalid names: Ectoconus majusculus Matthew 1937 [synonym]
†Ectoconus symbolus Gazin 1941
G. †Periptychus Cope 1881
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Invalid names: Catathlaeus rhabdodon Cope 1881 [synonym], Eohyus robustus Marsh 1894 [synonym], Periptychus gilmorei Gazin 1938 [synonym], Periptychus superstes Matthew 1935 [synonym]
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Invalid names: Periptychus brabensis Cope 1888 [synonym], Periptychus hamaxitus Gazin 1941 [synonym], Periptychus matthewi Simpson 1936 [synonym], Plagioptychus matthewi Simpson 1936 [synonym]
Invalid names: Carsioptychus Simpson 1936 [synonym], Catathlaeus Cope 1881 [synonym], Plagioptychus Matthew 1936 [synonym]
G. †Tinuviel Van Valen 1978
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†Tinuviel eurydice Van Valen 1978
Invalid names: Conacodontinae Archibald et al. 1983 [empty]