After Carroll, 1988, Nelson, 1994, and McLennan & Mattern, 2001 with Recent species from Froese & Pauly, 2001 [“The Fishbase”]

<==o Gasterosteidae (piikkikalat) [5/7]
   |-- Spinachia spinachia (Linnaeus, 1758) (vaskikala; Sea stickleback)
   `--+-- Apeltes quadracus (Mitchill, 1815) (Fourspine stickleback)
      `--+--o Gasterosteus [Meriamella] U. Mioc. R. NA. R. Eu. U. Mioc. R. As. NAf. (kolmipiikit) [3]
         |  |-- †G. doryssus
         |  |-- †G. sp.
         |  |--o G. aculaetus Linnaeus, 1758 (kolmipiikki)
         |  |  |-- G. a. aculeatus Linnaeus, 1758 (Three-spined stickleback)
         |  |  |-- G. a. microcephalus Girard, 1854
         |  |  |-- G. a. santaeannae Regan, 1909 (Santa Ana stickleback)
         |  |  `-- G. a. williamsoni Girard, 1854 (Unarmored threespine stickleback)
         |  |-- G. crenobiontus Bacescu & Mayer, 1956
         |  `-- G. wheatlandi Putnam, 1867 (Blackspotted stickleback)
         `--+-- Culaea inconstans (Kirtland, 1841) (Brook stickleback)
            `--o Pungitius [Gastrosteops] Plioc. R. NA. R. As. NAf. (kymmenpiikit) [5]
               |-- P. hellenicus Stephanidis, 1971
               |-- P. laevis (Cuvier, 1829) (Smoothtail ninespine stickleback)
               |--o P. platygaster (Kessler, 1859) (keskiaasiankymmenpiikki; Southern ninespine stickleback)
               |  |-- P. p. platygaster (Kessler, 1859) (Southern ninespine stickleback)
               |  `-- P. p. aralensis (Kessler, 1877) (Aral stickleback)
               |--o P. pungitius (Linnaeus, 1758) (kymmenpiikki; Ninespine stickleback)
               |  |-- P. p. pungitius (Linnaeus, 1758) (Ninespine stickleback)
               |  `-- P. p. tymensis Nikolskii, 1889 [P. tymensis] (japaninkymmenpiikki; Sakhalin stickleback)
               |--o P. sinensis (aasiankymmenpiikki)
               |  |-- P. s. kaibarae (Tanaka, 1915)
               |  `-- P. s. sinensis (Guichenot, 1869) (Amur stickleback)
               `?- P. occidentalis (amerikankymmenpiikki)

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