Classification of the subfamily Adianthinae

Subfm. †Adianthinae
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G. †Adianthus Ameghino 1891
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Adianthus bucatus Ameghino 1891
Adianthus godoyi Cifelli 1991
G. †Proadiantus Ameghino 1897
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Proadiantus excavatus Ameghino 1897
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Invalid names: Proadiantus pungidens Ameghino 1901 [synonym]
G. †Proheptaconus Bordas 1936
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Proheptaconus patagonicus Ameghino 1904
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Invalid names: Proheptaconus trelewense Bordas 1939 [synonym]
G. †Thadanius Cifelli and Soria 1983
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Thadanius hoffstetteri Cifelli and Soria 1983
G. †Tricoelodus Ameghino 1897
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Tricoelodus bicuspidatus Ameghino 1897
Tricoelodus boliviensis Cifelli and Soria 1983