After Ghedotti 2000, with Recent species from Froese & Pauly, 2001 [“The FishBase”]

<==o Girardini (metallihammaskarpinsukuiset hammaskarpit) [FB: 3/10]
   |--o Carlhubbsia ()? [2]
   |  |-- C. kidderi (Hubbs, 1936)
   |  `-- C. stuarti Rosen & Bailey, 1959 (Barred livebearer)
   |-- Quintana atrizona Hubbs, 1934 (Barred topminnow)
   `--o Girardinus Poey, 1854 ()? [Gh: 8] [FB: 7]
      |-- G. creolus Garman, 1895 (Creole topminnow)
      |-- G. cubensis (Eigenmann, 1903) (Cuban topminnow)
      |-- G. denticulatus Garman, 1895 (Toothy topminnow)
      |-- G. falcatus (Eigenmann, 1903) (Goldbelly topminnow)
      |-- G. metallicus Poey, 1854 (Metallic livebearer)
      |-- G. microdactylus Rivas, 1944 (Smallfinger topminnow)
      `-- G. uninotatus Poey, 1860 (Singlespot topminnow)

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