After Bardet, Pereda Suberbiola, Iarochène, Bouya & Amaghzaz, 2005

Halisaurus Marsh, 1869
        †Macrosaurus Marsh in Marsh, 1869
        †Halisaurus Marsh, 1869
        †Baptosaurus Marsh, 1870
        †Pluridens Lingham-Solier, 1998
      ?including:Phosphorosaurus Dollo, 1889
        ††Eonatator Bardet & Pereda Suberbiola in Bardet, Pereda Suberbiola, Iarochène, Bouya & Amaghzaz, 2005; Lindgren & Siverson, 2005

        †Halisaurus ortliebi (Dollo, 1889)
            †Phosphorosaurus ortliebi Dollo, 1889
            †Halisaurus ortliebi (Dollo); Lingham-Solier, 1996
            †Phosphorosaurus ortliebi Dollo; Holmes & Sues, 2000
            †Phosphorosaurus ortliebi Dollo; Lindgren & Siverson, 2005
            †Halisaurus ortliebi (Dollo); Bardet, Pereda Suberbiola, Iarochène, Bouya & Amaghzaz, 2005

        ?†Halisaurus onchognathus (Merriam, 1894)
            †Baptosaurus onchognathus Merriam, 1894 (nomen dubium, type lost during WWII)

        †Halisaurus walkeri (Lingham-Solier, 1998)
            †Pluridens walkeri Lingham-Solier, 1998
            †Halisaurus walkeri (Lingham-Solier); Lindgren & Siverson, 2005

        †Halisaurus arambourgi Bardet & Pereda Suberbiola in Bardet, Pereda Suberbiola, Iarochène, Bouya & Amaghzaz, 2005

        †Halisaurus platyspondylus Marsh, 1869

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