Tetanurae (/ˌtɛtəˈnjuːriː/ or "stiff tails") is a clade that includes most theropod dinosaurs, including megalosauroids, allosauroids, tyrannosauroids...

gap. Averostrans are some of the most derived theropods and contain the Tetanurae and Ceratosauria. While some used to consider coelophysoids and ceratosaurs...

including the majority of non-coleurosaurian members of theropod clade Tetanurae. Other researchers have found Allosauroidea and Megalosauroidea to be...

clade to be outside of Megalosauroidea and Neotetanurae, near the base of Tetanurae. A 2012 phylogeny found Monolophosaurus and Chuandongocoelurus, while...

theropods, while the skull resembles much later species of the clade Tetanurae, like China's Sinraptor and Yangchuanosaurus. This led Paul Sereno et...

Benson & Sampson (2012) performed much larger phylogenetic analysis of the Tetanurae that includes more taxa. They used the clade name Megalosauria (Bonaparte...

allosauroid displaying a mosaic of primitive and derived features seen within Tetanurae. Their phylogenetic analysis found traditional Megalosauroidea to represent...

of the known Gasosaurus fossils, it has an uncertain position within Tetanurae, and probably lays outside Coelurosauria. A detailed restudy of the holotype...

unknown, but it belongs somewhere inside the theropod subgroup known as Tetanurae and most likely was a member of the family Spinosauridae. Specimen UFMA...

†Family Abelisauridae †Family Noasauridae †Family Ceratosauridae Infraorder Tetanurae †Superfamily Megalosauroidea †Family Megalosauridae †Family Spinosauridae...