Information AboutTetanurae |
| CATEGORIES ABOUT TETANURAE | |
| theropods | |
|
'' Cryolophosaurus '' Spinosauroidea Megalosauridae Spinosauridae Torvosauridae Neotetanurae Carnosauria Coelurosauria DEFINITION ''Tetanurae'', meaning "stiff tails", was named by Gauthier (1986) for a large group of Theropod Dinosaurs . It is generally understood as all Theropods more closely related to modern Birds than to '' Ceratosaurus '' (e.g. Padian et al., 1999). Gauthier considered it to consist of '' Carnosauria '' and '' Coelurosauria '', although many of what he considered Carnosaurs have been regarded as Coelurosaurs or Basal tetanurans by subsequent workers (but see Rauhut, 2003). Sereno (1999) named '' Neotetanurae '' for the node joining '' Carnosauria '' (his '' Allosauroidea '') and '' Coelurosauria '', excluding other tetanurans such as Spinosauroids . Padian et al. (1999) gave a synonymous definition for Paul's (1988) '' Avetheropoda '', but this definition was published slightly later. RANGE Large, predatory Spinosaurids and Allosaurids flourished during the Late Jurassic and Early Cretaceous , especially in Gondwana , but seem to have died out before the end of the Cretaceous , possibly due to competition from Abelisaurid Ceratosaurs and Tyrannosaurid Coelurosaurs . The diverse Coelurosaurs persisted until the end of the Mesozoic Era , when all except for Crown Clade Avians died out. Modern Birds are the only living representatives of the Clade ''Tetanurae''. POPULAR TETANURANS Many popular Dinosaurs are tetanurans, including '' Archaeopteryx '', '' Allosaurus '', '' Oviraptor '', '' Spinosaurus '', '' Tyrannosaurus '', '' Velociraptor '', and all species of modern Bird . The first Mesozoic Dinosaur to be named was '' Megalosaurus Bucklandii '', a Basal tetanuran. PUBLISHED SOURCES
|
|
|