[Archosauria] Cope 1869 [Gauthier & Padian 1985], nom. cl. inval. see Clade Archosauria Cope 1869 [Gauthier & Padian 2020]
   Dinosauria Owen 1841 [Padian & May 1993], nom. cl. inval. see Clade Dinosauria Owen 1842 [Langer, Novas, Bittencourt, Ezcurra & Gauthier 2020]
     †Sauropodomorpha Huene 1932 [Salgado et al. 1997] see Order Sauropodomorpha Huene, 1932
       †Plateosauria Tornier 1913 [Sereno 1998]
         †Massopoda Yates 2007
           †Massospondylidae Huene 1914 see Family Massospondylidae Huene, 1914
             1.1 Genus †Lufengosaurus Young, 1941
             1.2 Genus †Glacialisaurus Smith & Pol, 2007
             1.3 Genus †Coloradisaurus Lambert, 1983
             2.1 Genus †Massospondylus Owen, 1854
             2.2.1 Genus †Adeopapposaurus Martínez, 2009
             2.2.2 Genus †Leyesaurus Apaldetti, Martínez, Alcober & Pol, 2011