Allosauria

A collage of four carnosaurs: Yangchuanosaurus (or possibly Sinraptor), Acrocanthosaurus, Concavenator, Allosaurus, Torvosaurus, Suchomimus

Mounted skeleton of Allosaurus fragilis, on display at the Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, USA

Mounted skeleton of Allosaurus fragilis, on display at the Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, USA

A collage of four carnosaurs: Yangchuanosaurus (or possibly Sinraptor), Acrocanthosaurus, Concavenator, and Allosaurus

A collage of four carnosaurs: Yangchuanosaurus (or possibly Sinraptor), Acrocanthosaurus, Concavenator, and Allosaurus

A collage of four carnosaurs: Yangchuanosaurus (or possibly Sinraptor), Acrocanthosaurus, Concavenator, and Allosaurus

A collage of four carnosaurs: Yangchuanosaurus (or possibly Sinraptor), Acrocanthosaurus, Concavenator, and Allosaurus

A collage of four carnosaurs: Yangchuanosaurus (or possibly Sinraptor), Acrocanthosaurus, Concavenator, and Allosaurus

A collage of four carnosaurs: Yangchuanosaurus (or possibly Sinraptor), Acrocanthosaurus, Concavenator, and Allosaurus

Six exemplar tetanurans (top to bottom): Monolophosaurus in combat with Tuojiangosaurus, Allosaurus, Deinocheirus, Spinosaurus, Sciurumimus, and Dromaius novaehollandae. This is a collection of six different works which have been previously published on Wikimedia Commons (see source field below).

Six exemplar tetanurans (top to bottom): Monolophosaurus in combat with Tuojiangosaurus, Allosaurus, Deinocheirus, Spinosaurus, Sciurumimus, and Dromaius novaehollandae. This is a collection of six different works which have been previously published on Wikimedia Commons (see source field below).

Six exemplar tetanurans (top to bottom): Monolophosaurus in combat with Tuojiangosaurus, Allosaurus, Deinocheirus, Spinosaurus, Sciurumimus, and Dromaius novaehollandae. This is a collection of six different works which have been previously published on Wikimedia Commons (see source field below).

Six exemplar tetanurans (top to bottom): Monolophosaurus in combat with Tuojiangosaurus, Allosaurus, Deinocheirus, Spinosaurus, Sciurumimus, and Dromaius novaehollandae. This is a collection of six different works which have been previously published on Wikimedia Commons (see source field below).

Six exemplar tetanurans (top to bottom): Monolophosaurus in combat with Tuojiangosaurus, Allosaurus, Deinocheirus, Spinosaurus, Sciurumimus, and Dromaius novaehollandae. This is a collection of six different works which have been previously published on Wikimedia Commons (see source field below).

Six exemplar tetanurans (top to bottom): Monolophosaurus in combat with Tuojiangosaurus, Allosaurus, Deinocheirus, Spinosaurus, Sciurumimus, and Dromaius novaehollandae. This is a collection of six different works which have been previously published on Wikimedia Commons (see source field below).

Skeletal reconstruction and postcranial anatomy of Asfaltovenator vialidadi, MPEF PV 3440. Centre: body outline with preserved elements indicated. (A) articulated cervical vertebrae three to five. (B) cervical vertebra 7. (C) articulated dorsal vertebrae four to seven (better preserved right side, reversed). (D) right humerus in anterior view. (E) right radius and ulna, medial view. (F) right manus, metacarpus in dorsal and digits in lateral view. (G) articulated proximal ends of right tibia and fibula in lateral and proximal views. Abbreviations: ag, anterior groove; cc, cnemial crest; cr, cervical rib; dc, distal carpal; di, diapophysis; dpc, deltpectoral crest; ec, ectepicondyle; ent, entepicondyle; epi, epipophysis; fi, fibula; fic, fibular condyle; hy, hyposphene; im, intermedium; it, internal tuberosity; lr, lateral ridge; mc, metacarpal; ns, neural spine; ol, olecranon; pa, parapophysis; pl, pleurocoel; poz, postzygapophysis; ppdl, paradiapophyseal lamina; prz, prezygapophysis; ra, radial. Scale bars are 100 cm (skeletal reconstruction), 5 cm (A–C) and 10 cm (D–G).