After Novas, 1996, Ezcurra, 2010, and Martinez et al., 2011

Alternative phylogeny of basal theropods after Smith, Makovicky, Hammer & Currie, 2007

Family-level phylogeny of non-avian theropods after Paul, 1988

Family-level phylogeny of non-avian theropods after Holtz, 1998, and Sereno, 1999.

<==o Dinosauria Owen, 1842 (dinosaurs; dinosaurit, dinosaurukset, hirmuliskot)
   |-- †Ornithischia Seeley, 1888 (bird-hipped dinosaurs, ornithischians; linnunlanteiset dinosaurit)
   `--o Saurischia Seeley, 1887 (lizard-hipped dinosaurs; saurischians; liskonlanteiset dinosaurit)
      |--o †Sauropodomorpha Huene, 1932 (sauropodomorphs, long-necked plant-eating dinosaurs; pitkäkaulat)
      |  |--o †Guaibasauridae Bonaparte, Ferigolo & Ribeiro, 1999 sensu Ezcurra, 2010
      |  |  |?- †Agnostiphitys cromhallensis Fraser, Padian, Walkden & Davis, 2002
      |  |  |-- †Eoraptor lunensis Sereno, Forster, Rogers & Monetta, 1993 sensu Martinez et al., 2011
      |  |  |-- †Panphagia protos Martinez & Alcober, 2009; L.Trias. SAm.
      |  |  |-- †Guaibasaurus candelariensis Bonaparte, Ferigolo & Ribeiro, 1999; L.Trias. SAm.
      |  |  `--o †Saturnaliinae Ezcurra, 2010
      |  |     |-- †Chromogisaurus novasi Ezcurra, 2010; L.Trias. SAm.
      |  |     `-- †Saturnalia tupiniquim Langer, Abdala, Richter & Benton, 1999; L.Trias. SAm.
      |  `-- †Sauropodiformes Martinez et al., 2011
      `--o Theropoda Marsh, 1881b (theropods; predatory dinosaurs; petojalat, petodinosaurit)
         |-- †Herrarasauria sensu Sereno & Novas, 1992, 1994 and Novas, 1994, 1996 [Herreravia Paul, 1988] (herrerasaurs; herrerasaurit)
         `--+-- †Eodromaeus murphi Martinez et al., 2011; M.Trias. SWSAm.
            `--+-- †Daemonosaurus chauliodus Sues, Nesbitt, Berman & Henrici, 2011; L.Trias. SWNAm.
               `--+-- †Tawa hallae Nesbitt, Smith, Irmis, Turner, Downs & Norell, 2009; L.Trias. SWNAm.
                  `--o Avepoda Paul, 2002 (avepods)
                     `--o Neotheropoda (neotheropods)
                        |?- †Protoavis texensis Chatterjee, 1991
                        |-- †Ceratosauria Marsh, 1884a (ceratosaurs; keratosaurit, vanhapetodinosaurit)
                        `-- Tetanurae Gauthier, 1986 [incl. Aves Linnaeus, 1758] (advanced predatory dinosaurs; uuspetodinosaurit)

Some group-defenitions:

 

Alternative phylogenies of basal dinosaurs:

After Novas, 1996

<==o Dinosauria
   |-- †Ornithischia
   `--o Saurischia
      |-- †Sauropodomorpha
      `--o Theropoda
         |-- †Eoraptor
         `--+-- †Herrarasauria
            `--+?- †Guaibasaurus
               `--o Avepoda
                  `--o Neotheropoda
                     |-- †Ceratosauria
                     `-- Tetanurae

After Carrano & Sampson, 1999

<==o Dinosauria
   |-- †Ornithischia
   `--o Saurischia
      |-- †Sauropodomorpha
      `--o Theropoda
         |?- †Eoraptor
         |?- †Herrarasauria
         `--+-- †Guaibasaurus
            `--o Neotheropoda
               |?- †Rileyasuchus
               |-- †Coelophysoidea
               `--+-- †Neoceratosauria
                  `-- Tetanurae

After Langer, 2001, Yates, 2005, and Ferigolo & Langer, 2006

<==o Dinosauria
   |--o †“Predentata”
   |  |-- †Silesaurus
   |  `--+-- †Sacisaurus
   |     `-- †Ornithischia
   `--o Saurischia
      |-- †Herrarasauria
      `--+-- †Eoraptor
         `--o Eusaurischia
            |--+-- †Saturnalia
            |  `-- †Sauropodomorpha
            `--o Theropoda
               |-- †Guaibasaurus
               `--o Neotheropoda
                  |?- †Protoavis
                  |-- †Coelophysoidea
                  `--+-- †Neoceratosauria
                     `-- Tetanurae

After Martinez et al., 2011

<==o Dinosauromorpha
   |-- †Lagerpetidae
   `--+-- †Marasuchus
      `--+-- †Silesauridae
         `--o Dinosauria
            |-- †Ornithischia
            `--o Saurischia
               |--o †Sauropodomorpha
               |  |-- †Sauropodiformes
               |  `--+-- †Eoraptor
               |     |-- †Panphagia
               |     `-- †Saturnalia
               `--o Theropoda
                  |-- †Herrarasauria
                  `--+-- †Eudromaeus
                     `--+--o †Coelophysoidea
                        |  |-- †Tawa 
                        |  `== “other coelophysoids”
                        `--+-- †Neoceratosauria
                           `-- Tetanurae

Reference(s):