Sauropodomorpha

Sauropodomorphs Temporal range: 233.23–66 Ma[1] PreꞒ Ꞓ O S D C P T J K Pg N
Six sauropodomorphs (top left to bottom right): Plateosaurus, Brontosaurus, Massospondylus, Eoraptor, Thecodontosaurus, Cetiosaurus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	Saurischia
Clade:	Eusaurischia
Clade:	†Sauropodomorpha Huene, 1932
Subgroups
†Ahvaytum?[2] †Buriolestes †Eoraptor †Mbiresaurus †Guaibasauridae †Saturnaliidae †Bagualosauria Langer et al., 2019 †Arcusaurus †Asylosaurus †Bagualosaurus †Efraasia †Nambalia †Pantydraco †Thecodontosauridae †Unaysauridae †Plateosauria Tornier, 1913 †Plateosauravus †Ruehleia †Xixiposaurus †Plateosauridae †Massopoda

Sauropodomorpha (/ˌsɔːrəˌpɒdəˈmɔːrfə/^[3] SOR-ə-POD-ə-MOR-fə; from Greek, meaning "lizard-footed forms") is an extinct clade of long-necked, herbivorous, saurischian dinosaurs that includes the sauropods and their ancestral relatives. Sauropods generally grew to very large sizes, had long necks and tails, were quadrupedal, and became the largest animals to ever walk the Earth. The prosauropods, which preceded the sauropods, were smaller and were often able to walk on two legs. The sauropodomorphs were the dominant terrestrial herbivores throughout much of the Mesozoic Era, from their origins in the Late Triassic (approximately 230 Ma) until their decline and extinction at the end of the Cretaceous.