After Tyler, Jerzma´nska, Bannikov & ´Swidnicki, 1993, Nelson, 1994, and Santini & Tyler, 2002,, with Recent species from Froese & Pauly, 2001 [“The Fishbase”]

<==o Triacanthidae (naulakalat; triplespines)
   |-- †Protacanthodes ombonii Eoc. Eu. [Protacanthodinae]
   `--o Triacanthinae [4/7]
      |--o Triacanthus
      |  |-- T. biaculeatus (Bloch, 1786) (Short-nosed tripodfish)
      |  `-- T. nieuhofii Bleeker, 1852 (Silver tripodfish)
      `--o Tripodichthys sensu lato
         |-- Tripodichthys angustifrons (Hollard, 1854) (Black-flag tripodfish)
         `--+-- Tripodichthys blochii (Bleeker, 1852) (Long-tail tripodfish)
            `--+-- Tripodichthys oxycephalus (Bleeker, 1851) (Short-tail tripodfish)
               `--+-- Trixiphichthys weberi (Chaudhuri, 1910) (Blacktip tripodfish)
                  `-- Pseudotriacanthus strigilifer (Cantor, 1849) (Long-spined tripodfish)

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