After Cleal & Rees, 2003 and Cleal & Shute, 2003

<==o †Medullosales [Medullosacaea]
   |?- †Stephanospermum konopeonus (Langford) Drinnan [reproductory parts]
   |--o †Potonieaceae [Rachivestitaceae; Perispermaceae]
   |  |-- †Paripteris Gothan, 1941 (fronds)
   |  |-- †Linopteris Presl, in Sternberg, 1838 (fronds)
   |  |-- †Sutcliffia Scott, 1906 (stems)
   |  |-- †Potoniea Zeiller, 1890 (pollen organs)
   |  `-- †Hexagonocarpus Renault, in Renault & Zeiller, 1888 (ovules)
   |--o †Alethopteridaceae
   |  |-- †Alethopteris Sternberg, 1825
   |  |-- †Cardioneuropteris Goganova et al., 1992
   |  |-- †Lonchopteridium Gothan, in Potonié, 1909
   |  |-- †Lonchopteris Brongniart, 1928
   |  |-- †Neuralethopteris Cremer ex laveine, 1967
   |  `?- †Crossopteris Tidwell, 1967
   |--o †Neurodontopteridaceae Laveine, 1966 [incl. Odontopteridaceae sensu Corsin, 1960]
   |  |--o †Neuropteris (Brongniart) Sternberg, 1825 sensu stricto
   |  |  |-- †N. ovata Hoffmann [=? Cyclopteris ciliata -group]
   |  |  `--o †N. obliqua¨
   |  |     `-- †N. obliqua forma impar [Cyclopteris otopteroides]
   |  |-- †Macroneuropteris Cleal et al., 1990
   |  |-- †Reticulopteris Gothan, 1953
   |  |?- †Neurocallipteris Sterzel, 1895
   |  |?- †Neurodontopteris Potonié, 1893b
   |  |?- †Barthelopteris Zodrow & Cleal, 1993
   |  `?-o †Odontopteris (Brongniart) Brongniart, 1831
   |     `-- †O. brardii Brongniart [Cyclopteris trichomanoides; Cyclopteris biauriculata; Cyclopteris iliciformis]
   `--o †Cyclopteridaceae
      |--o †Cyclopteris Brongniart, 1828 [morphogenus, leaves] [68! validly published species (see Cleal & Shute, (2003, fig. 3A) for details)]
      |  |--+-- †C. orbicularis Brongniart, 1828
      |  |  |-- †C. andraei
      |  |  |-- †C. collinsii
      |  |  |-- †C. germarii
      |  |  |-- †C. heterophylla
      |  |  |-- †C. ingens
      |  |  |-- †C. major
      |  |  |-- †C. oblata
      |  |  |-- †C. obliqua
      |  |  |-- †C. pinna
      |  |  |-- †C. recurvata
      |  |  |-- †C. robinsonii
      |  |  |-- †C. schoenaichii
      |  |  |-- †C. semiflabeliformis
      |  |  |?- ?†C. rarinervia
      |  |  `?- ?†C. grandis
      |  |--o †C. ciliata -group
      |  |  |-- †C. ciliata
      |  |  |-- †C. fimbriata
      |  |  |-- †C. lacerata
      |  |  |-- †C. lacinata
      |  |  |-- †C. undans
      |  |  `-- †C. wilsonii
      |  `-- †C. hirta
      |-- †Callipterygium (Weiss) Grand'Eury, 1877 [morphogenus, fronds]
      |-- †Margaritopteris Gothan, 1913
      `--o †Laveineopteris Cleal, et al., 1990 emend. Cleal & Shute, 2003
         |-- †L. loshii (Brongniart, 1831) Cleal, et al., 1990 emend. Cleal & Shute, 2003 [taxonomic history]
         |--o †L. tenuifolia (Schlotheim ex Sternberg, 1825) Cleal, et. al., 1990 emend. Cleal & Shute, 2003 []
         |  |-- †L. tenuifolia var. tenuifolia (Schlotheim ex Sternberg, 1825) Cleal, et. al., 1990 emend. Cleal & Shute, 2003
         |  `-- †L. tenuifolia var. nordfrancia Bertrand, 1930 emend. Cleal & Shute, 2003
         |-- †L. rarinervis (Bunbury, 1847) Cleal, et al., 1990 emend. Cleal & Shute, 2003 []
         |-- †L. gaudiatensis (Wagner)
         |-- †L. hollandica (Stockmans)
         |-- †L. jongmansii (Crookall)
         |-- †L. morinii (Laveine)
         |-- †L. nicolausiana (Gotham)
         `-- †L. piesbergensis (Gotham)

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