Classification of the subclass Filicinae
Subcl. †Filicinae
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G. †Corsinopteris Doweld 2001
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†Corsinopteris petschorica Doweld 2001
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Invalid names: Orthotheca petschorica Fefilova 1973 [objective synonym]
†Corsinopteris saraepontana Doweld 2001
†Corsinopteris saraepontanus Doweld 2001
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Invalid names: Danaeites saraepontanus Stur 1885 [objective synonym]
Invalid names: Orthotheca Corsin 1951 [replaced]
G. †Pecopteris Brongniart 1822
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Subg. †Pecopteris (Alethopteris) Sternberg 1825
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†Alethopteris branneri White 1913
†Alethopteris lobifolia Schimper 1828
†Alethopteris lonchiticus Schlotheim 1804
†Alethopteris roesserti Presl 1838
†Alethopteris valida Boulay 1876
†Alethopteris whitbyensis Göppert 1876
†Alethopteris whitneyi Newberry 1876
†Pecopteris affinis McClelland 1850
†Pecopteris arctica Heer 1883
†Pecopteris borealis Brongniart 1828
†Pecopteris buhsei Engelhardt 1891
†Pecopteris concinna Presl 1881
†Pecopteris cycloloba Newberry 1861
†Pecopteris filatovae Sixtel 1962
†Pecopteris geyleriana Nathorst 1890
†Pecopteris lobata Oldham 1863
†Pecopteris montanensis Fontaine 1892
†Pecopteris pennaeformis Brongniart 1822
†Pecopteris rarinervis Fontaine 1883
†Pecopteris sepulta Newberry 1882
†Pecopteris sulziana Brogniart 1828
†Pecopteris totangensis Colani 1920