After Carroll, 1988, Nelson, 1994, Li & Wilson, 1994, and Li, Grande & Wilson, 1997

<==o Hiodontiformes Taverne, 1979 (kuusilmäkalat
   |?-o †Chetungichthys Chang & Chou, 1977
   |  |-- †C. brevicephalus Chang & Chou, 1977
   |  `-- †C. dalinghensis Su, 1991
   |-- †Yanbiania wangqingica Li, 1987
   `--+-- †Plesiolycoptera daqingensis Chang & Chou, 1976
      `--o Hiodontidae Valenciennes, 1846 sensu stricto (kuusilmät)
         |--o †Eohiodon Eoc. EAs. NA.
         |  |?- †E. falcatus Grande
         |  |?- †E. shuyangensis Shen, 1989
         |  |?- †E. parvus
         |  |-- †E. rosei (Hussakof)
         |  `-- †E. woodruffi Wilson
         `--o Hiodon Lesueur, 1818 (kuusilmät)
            |-- †H. consteniorum Li & Wilson, 1994
            `--+-- H. tergisus Lesueur, 1818 (mooneye; kuusilmä)
               `-- H. alosoides (Rafinesque, 1819) (goldeye; kultasilmä)

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