Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
Eureptilia Olson, 1947
Diapsida Osborn 1903 [Laurin 1991]
see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
Neodiapsida Benton 1985
Archosauromorpha Huene 1946 [Benton 1985], nom. cl. inval.
see Clade Archosauromorpha von Huene 1946 [Gauthier 2020]
Archosauria Cope, 1869
Avesuchia Benton, 1999
see Clade Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval.
Avemetatarsalia Benton 1999
see Clade Ornithodira Gauthier 1986
Ornithodira Gauthier 1986
see Clade Ornithodira Gauthier 1986 [M. Ezcurra, S. Nesbitt, M. Bronzati, F. Dalla Vecchia, F. Agnolin, R. Benson, ..., M. Langer 2020]
Dinosauromorpha Benton 1985 [Sereno 1991], nom. cl. inval.
see Clade Dinosauromorpha Benton 1985 [M. Ezcurra, S. Nesbitt, M. Bronzati, F. Dalla Vecchia, F. Agnolin, R. Benson, ..., M. Langer 2020]
Dinosauriformes Novas 1992, nom. cl. inval.
see Clade Dinosauriformes Novas 1992 [M. Ezcurra, S. Nesbitt, M. Bronzati, F. Dalla Vecchia, F. Agnolin, R. Benson, ..., M. Langer 2020]
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]
Eusaurischia Padian et al. 1999
Theropoda Marsh 1881 [Gauthier 1986]
see Clade Theropoda Marsh 1881 [Naish, Cau, Holtz Jr., Fabbri & Gauthier 2020]
†Ceratosauria Marsh 1895 [Rowe & Gauthier 1990]
†Neoceratosauria Novas 1991 [Holtz 1994]
Genus †Elaphrosaurus Janensch, 1920