After Nelson, 1994, Shirai, 1996, and Williams, 1999-2000

<==o Galeomorphii (aito-, suurhait)
   |--o Heterodontiformes (sarvihait; bullhead sharks, horn sharks, Port Jackson sharks)
   |  `--o Heterodontidae (sarvihait)
   |     |-- †Paracestracion U. Jur. Eu.
   |     |-- †Strongyliscus Mioc. WNA. 
   |     `--o Heterodontus Blainville, 1816 [Cestracion, Drepanephorus, Gyropleurodus, Platyacrodus, Pseudacrodus, Tropidotus] U. Jur. Mioc. Eu. U. Cret. Mioc. SA. U. Cret. Eoc. Af. Mioc. Aus. NZ. R. Indo-Pac. Oc. [8]
   |        |-- H. (Heterodontus) portusjacksoni (Meyer, 1793)
   |        |--o H. (Gyropleurodus) Gill, 1862
   |        |  |-- H. quoyi (Freinville, 1840)
   |        |  |-- H. francisci (Girard, 1854)
   |        |  |-- H. ramalheira (Smith, J.L.B., 1949)
   |        |  `-- H. mexicanus Taylor & Castro-Aguirre, 1972
   |        |-- H. (Molochophrys) galeatus (Gunther, 1870)
   |        `--o H. (Wuia) Fowler, 1934
   |           |-- H. zebra (Gray, 1831)
   |           |-- H. japonicus (Maclay & Macleay, 1884)
   |           `-- H. sp. indet. [Arabian Sea]
   `--+-- Orectolobiformes (partahait)
      `--+-- Carcharhiniformes Compagno, 1977 (ihmishait)
         `-- Lamniformes (sinihait)

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