After Grande, L., 1999, López, Chen & Orti, 2004, and Grande, T., Laten & López, 2004, with Recent species from Froese & Pauly, 2001 and Lahti, S., Malmström, Koli, Leikola, Syrjämäki & Lahti, J., 1980

Alternative phylogeny after Nelson, 1994

<==o Esociformes (pike-like fishes; haukikalat)
   |-- †Palaeoesox fritzschei [primitive umbrid??] [Palaeoesocidae]
   `--o Esocoidei (hauensukuiset haukikalat)
      |?- †Proumbra
      |--o Umbra Olig. R. Eu. (mudminnows; koirakalat) [paraphyletic Umbridae: Umbrinae]
      |  |-- †U. perpusilla
      |  |-- U. krameri Walbaum, 1792 (Mudminnow)
      |  |-- U. limi (Kirtland, 1841) (Central mudminnow)
      |  `-- U. pygmaea (DeKay, 1842) (koirakala; Eastern mudminnow)
      `--+--o Dallia Bean, 1880 [Umbridae: Dallinae] (blackfishes)
         |  |?- D. admirabilis [synon. to D. pectoralis?]
         |  |?- D. delicatissima [synon. to D. pectoralis?]
         |  `-- D. pectoralis Bean, 1880 (Alaska blackfish)
         `--+-- Novumbra hubbsi Schultz, 1929 (Olympic mudminnow) [paraphyletic Umbridae: Umbrinae]
            `--o Esocidae (pikes; hauet)
               |-- †Oldmanesox canadiensis
               |-- †Estesesox foxi
               `--o Esox Linnaeus, 1758 [Trematina] [incl. Lucius Geoffroy, 1767; Kenoza Jordan & Evermann, 1896; Mascalongus Jordan, 1878] Paleoc. R. Eu. As. NA. (pikes; hauet)
                  |-- †E. tiemani
                  |-- †E. primaevus
                  |-- †E. aralensis
                  |-- †E. borealis
                  |-- †E. dispar
                  |-- †E. papyraceus
                  |?- †E. destructus
                  |-- †E. sibiricus
                  |-- †E. lepidotus [E. robustus]
                  |-- †E. moldavicus
                  |--o (Kenoza) Jordan & Evermann, 1896 (American pikes, pickerels; amerikanhauet)
                  |  |-- †E. (K.) kronneri
                  |  `--+-- E. (K.) niger Lesueur, 1818 (mustahauki; Chain pickerel)
                  |     `--o E. (K.) americanus (amerikanhauki, pickerel)
                  |        |-- E. (K.) a. americanus Gmelin, 1789 (Redfin pickerel)
                  |        `-- E. (K.) a. vermiculatus Lesueur, 1846 (Grass pickerel)
                  `--o (Esox) Linnaeus, 1758 [incl. Lucius Geoffroy, 1767; Mascalongus Jordan, 1878] (Eurasian pikes, pikes, euraasianhauet)
                     |-- E. (E.) masquinongy Mitchill, 1824 (Muskellunge, muskie; jättihauki)
                     `--+-- E. (E.) reichardi [E. reichertii] Dybowski, 1869 (Amur pike; amurinhauki)
                        `-- E. (E.) lucius Linnaeus, 1758 (Northern pike; hauki)

After Nelson, 1994

<==o Esociformes
   |-- †Palaeoesox fritzschei [primitive umbrid??] [Palaeoesocidae]
   `--o Esocoidei
      |--o Umbridae
      |  |?- †Proumbra
      |  |?- Dallia Bean, 1880 [Dallinae]
      |  `--o Umbrinae
      |     |-- Novumbra Schultz, 1929
      |     `-- Umbra Olig. R. Eu.
      `--o Esocidae
         |-- †Oldmanesox canadiensis
         |-- †Estesesox foxi
         `-- Esox [Trematina] Paleoc. R. Eu. As. NA.

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