The Order Saurischia is further organized into finer groupings including:
- Suborder (4): Rauisuchia · Sauropodomorpha · Segnosauria · Theropoda
- Infraorder (5): Ceratosauria · Coelophysoidea · Prosauropoda · Sauropoda · Tetanurae
- Family (41): Abelisauridae · Allosauridae · Alvarezsauridae · Anchisauridae · Anchisauripodidae · Baryonychidae · Blikanasauridae · Brachiosauridae · Camarasauridae · Carcharodontosauridae · Ceratosauridae · Cetiosauridae · Coelophysidae · Coeluridae · Coelurosauridae · Deinocheiridae · Dicraeosauridae · Diplodocidae · Dryptosauridae · Enigmosauridae · Euhelopodidae · Garudimimidae · Grallatoridae · Herrerasauridae · Massospondylidae · Megalosauridae · Melanorosauridae · Omeisauridae · Ornithomimidae · Plateosauridae · Poposauridae · Rebbachisauridae · Saurornithoididae · Segnosauridae · Spinosauridae · Thecodontosauridae · Therizinosauridae · Titanosauridae · Tyrannosauridae · Vulcanodontidae · Yunnanosauridae
- Species: ZipcodeZoo has pages for 201 species and subspecies in the Order Saurischia.
The Blikanasauridae were a group of early sauropodomorph dinosaurs. The clade was first proposed by Galton and van Heerden in 1985. The family consists of Blikanasaurus and its nearest relatives. However, it is not clear which other genera are included in the family. The family is not used in many current taxonomies; Benton (2004) does not list the clade. The Blikanasaurids were once considered Prosauropods, but new research indicates they may in fact have been basal Sauropods. [more]
Cetiosaurus (SEET-ee-oh-sawr-us) meaning 'whale lizard', from the Greek cetus/??t?? meaning 'sea monster' (later, 'whale') and saurus/sa???? meaning 'lizard', was a sauropod dinosaur from the Mid to Late Jurassic Period (181-169 million years ago) in what are now Europe and Africa. It is estimated to have been about 53 feet (16 m) long and to have weighed roughly 24.8 tonnes (27.3 short tons). It was so named because its discoverer, Sir Richard Owen supposed it was a marine creature, initially an extremely large crocodile. [more]
Dicraeosauridae is a family of sauropod dinosaurs known from the Late Jurassic and Early Cretaceous of Africa and South America. Currently only three genera are recognised; the Jurassic South American genus Brachytrachelopan, the Jurassic African Dicraeosaurus and the South American Early Cretaceous Amargasaurus, with its distinctive neck spines. All three animals are small by sauropod standards, with relatively short necks. [more]
More info about the Family Yunnanosauridae may be found here.
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