After Carroll, 1988

Family-level taxonomy of coccosteines.

<==o †Coccosteina [Coccosteoidei, Brachythoraci Gross, 1932]
   |?- †Maideria falipoui Lelièvre, 1995
   |--o †Buchanosteoidea
   |  |-- †Goodradigbeeon australianium White, 1978; L. Dev. Aus. [Goodradigbeonidae]
   |  `--o †Buchanosteidae White, 1952
   |     |-- †Arenipiscis westolli Young, 1981; L.Dev. Aust.
   |     |-- †Buchanosteus confertituberculatus (Chapman, 1916) Stensiö, 1945 (non Young, 1979??); L.Dev. Aust.
   |     |-- †Burrinjucosteus asymmetricus White, 1978; L.Dev. Aust.
   |     |-- †Errolosteus goodradigbeensis Young, 1981; L.Dev. Aust.
   |     |-- †Uralosteus bashkiricus Mark-Kurik & Young, 2003; L. Dev. EEu.
   |     |-- †Parabuchanosteus murrumbidgeensis  L.Dev. Aust.
   |     `-- †Toombsosteus denisoni White, 1978; L.Dev. Aust.
   `--+-- †Gemuendenaspis L. Dev. Eu. [Gemuendenaspoidea: Gemuendenaspidae]
      `--+--o †Homosteiidae Jaekel, 1903 [Homosteoidea:]
         |  |-- †Angarichthys Obruchev, 1927; M. Dev. NAs.
         |  |-- †Cathlesichthys weejasperensis Young, 2004a; U.Dev. Aust.
         |  |-- †Cavanosteus australis (McCoy, 1876) Young, 2004b; U.Dev. Aust.
         |  |-- †Dhanguura johnsoni Young, 2004a; U.Dev. Aust.
         |  |-- †Euleptaspis White & Moy-Thomas, 1940 [Leptaspis] L. Dev. Eu. Spits. 
         |  |-- †Trionyx L.-M.Dev. Spits. M.Dev. Eu. EEu. Gr. NA.
         |  |?- †Lophostracon L.Dev. Spits.
         |  |-- †Luetkeichthys Bystrow, 1957; M. Dev. NAs. 
         |  `--o †Migmatocephala 
         |     |--o †Taemasosteus White, 1978; L. Dev. Aus. 
         |     |  |-- †T. novaustrocambricus White, 1978
         |     |  `-- †T. maclartiensis Long, 1984
         |     `--+-- †Tityosteus Gross, 1960; L. Dev. Eu.
         |        `--+-- †Antineosteus lehmani Lelièvre, 1984
         |           `--+--o †Homosteus Asmuss, 1856 [Homostius; Homotius] L.-M. Dev. Spits. M. Dev. Eu. EEu. Gr. NA.
         |              |  |-- †H. milleri
         |              |  `-- †H. kochi Stensiö & Säve-Söderbergh, 1938
         |              `--o †Atlantidosteus Lelièvre, 1984
         |                 |-- †A. hollardi Lelièvre, 1984
         |                 `-- †A. pacifica Young, 2003
         `--+--o †Brachydeiroidea
            |  |-- †Leptosteus U. Dev. Eu. NA. [Leptosteidae]
            |  `--o †Brachydeiridae
            |     |-- †Brachydeirus [Brachydirus, Auchenosteus] U. Dev. Eu. 
            |     |-- †Oxyosteus [Platyosteus] U. Dev. Eu. EEu. 
            |     `-- †Synauchenia [Synosteus] U. Dev. Eu. 
            `--o †Eubrachythoraci Miles, 1971
               |-- †Coccosteomorphi Stensiö, 1944 sensu Carr & Hlavin, 2010 [Coccosteoidea]
               `-- †Pachysteomorphi Stensiö, 1944 sensu Carr & Hlavin, 2010 [Dinichthyloidea]

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