Basal and incertae sedis (Extinct)

• Genus †Paralycoptera Chang & Chou, 1977
• Genus †Jinanichthys Ma & Sun 1988 [Liaoxiichthys Su 1992]
• Genus ?†Kokuraichthys Yabumoto 2013
• Genus ?†Nierrkunia Su 1992
• Genus ?†Shuleichthys Murray, You & Peng 2010
• Genus ?†Suziichthys Su 1992
• Genus ?†Wilsonichthys Murray, Newbrey, Neumand & Brinkmand 2016
• Family †Jiaohichthyidae Ma 1983
  • Genus †Jiaohichthys Ma 1983
• Family †Kuyangichthidae Liu, Ma & Liu, 1982
  • Genus †Kuyangichthys Liu, Ma & Liu 1982
  • Genus †Pulinia Ma 1983

Order †Lycopteriformes Chang & Chou 1977

• Family †Juiquanichthyidae Ma, 1984
  • Genus †Jiuquanichthys Ma 1984
  • Genus †Changma Ma 1984
  • Genus †Qilianichthys Ma 1984
• Family †Lycopteridae Liu, Su, Huang & Chang, 1963
  • Genus †Aokiichthys Yabumoto 1994
  • Genus †Changichthys Su 1991
  • Genus †Manchurichthys Saito 1936
  • Genus †Neolycoptera Dolgopol de Saez 1939
  • Genus †Pingolepis Chang & Chow 1974
  • Genus †Tongxinichthys Ma 1980
  • Genus †Yixianichthys Wu 2003
  • Genus †Yungkangichthys Chang & Chou 1977
  • Genus †Lycoptera Liu et al. 1963 [Asiatolepis Takai 1944; Sungarichthys Takai 1944]

Order Hiodontiformes McAllister 1968 sensu Taverne 1979

• Genus †Chetungichthys Chang & Chou, 1977
• Genus †Plesiolycoptera Zhang & Zhou 1976
• Genus †Yanbiania Li 1987
• Family Hiodontidae Valenciennes 1846 sensu stricto (mooneyes)
  • Genus †Eohiodon Cavender 1966
  • Genus Hiodon Lesueur 1818

Order Osteoglossiformes Regan 1909 sensu Zhang 2004

• Genus Xixiaichthys Zhang 2004
• Genus Tanolepis Jin 1994 [Tanichthys Jin 1991 non Lin 1932]
• Family †Huashiidae Chang & Chou, 1977
  • Genus †Kuntulunia Liu, Ma & Liu 1982
  • Genus †Huashia Chang & Chou 1977
• Suborder Pantodontoidei
  • Family Pantodontidae Peters 1876 (freshwater butterflyfishes)
    • Genus Pantodon Peters 1877
• Suborder Osteoglossoidei Regan 1909
  • Genus †Genartina Frizzell & Dante 1965
  • Genus †Monopteros Volta 1796
  • Genus †Musperia Sanders 1934
  • Genus †Phareoides Taverne, 1973
  • Genus †Chauliopareion
  • Family †Brychaetidae Bonde 1966
    • Genus †Brychaetus Woodward 1901
  • Family †Singididae Greenwood & Patterson 1967
    • Genus †Singida Greenwood & Patterson 1967
  • Family Phaerodontidae Jordan 1925a
    • Genus †Phareodusichthys Gayet 1991
    • Genus †Cretophareodus Li 1996
    • Genus †Phareodus Leidy 1873
  • Family Osteoglossidae Bonaparte 1832 sensu lato (arowanas)
• Suborder Notopteroidei Greenwood 1973
  • Family †Ostariostomidae Schaeffer, 1949
    • Genus †Ostariostoma Schaeffer 1949
  • Superfamily Notopteroidea
    • Family †Wakinoichthiidae Yabumoto 1994
      • Genus Wakinoichthys Yabumoto 1994 corrig.
    • Family †Kipalaichthyidae Benveniste 1998
      • Genus †Kipalaichthys Casier 1965
      • Genus †Paradercetis Casier 1965
    • Family Notopteridae Bleeker 1851 (Brown knifefish; featherbacks)
  • Superfamily Mormyroidea
    • Family Gymnarchidae Bleeker 1859 (Aba, African Knifefish)
    • Family Mormyridae Bonaparte 1832 (freshwater elephantfishes)