Dinosauria Owen 1841 [Padian & May 1993], nom. cl. inval. see Clade Dinosauria Owen 1842 [Langer, Novas, Bittencourt, Ezcurra & Gauthier 2020]
   Saurischia Seeley 1887 [Gauthier 1986], nom. cl. inval. see Clade Saurischia Seeley 1888 [Gauthier, Langer, Novas, Bittencourt & Ezcurra 2020]
     †Sauropodomorpha Huene 1932 [Salgado et al. 1997] see Order Sauropodomorpha Huene, 1932
       †Prosauropoda Huene 1920 [Sereno 1998] see Suborder Prosauropoda Huene, 1920
         †Plateosauria Tornier 1913 [Sereno 1998]
           1 †Plateosauridae Marsh 1895 see Family Plateosauridae Marsh, 1895
           2 †Massospondylidae Huene 1914 see Family Massospondylidae Huene, 1914