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Describer
Marsh, 1877 Time Jurassic Late Kimmeridgian Tithonian
Classification Saurischia Theropoda Tetanurae Carnosauria Allosauridae
Diet Carnivore
Fossilsite
US, Portugal, ?Tanzania Fall Under
Allosaurus fragilis Length 12 meter
Info Genus - Skull Allosaurus (Marsh, 1877) = Creosaurus (Marsh, 1878) Epanterias (Cope, 1878) Labrosaurus (Marsh, 1879) ?Saurophagus (Ray, 1941) Allosaurus > Allosaurus fragilis (Marsh, 1877) Laelaps trihedrodon (Cope, 1877) Creosaurus atrox (Marsh, 1878) Epanteris amplexus (Cope, 1878) Hypsirhophus discurus (1) [partim] (Cope, 1878) Allosaurus lucaris (Marsh, 1878) Allosaurus ferox (Marsh, 1896) ?Saurophagus maximus (Ray, 1941) ?Labrosaurus ferox (Marsh, 1884) Camptosaurus amplus (Marsh, 1879) = Camptonotus amplus (Marsh, 1879) Allosaurus whitei (Pickering, 1995) Allosaurus > ?Allosaurus tendagurensis (Janensch, 1925) Allosaurus > Allosaurus europaeus (Mateus, Walen and Antunes 2006)
Allosaurus ("other lizard") was one of the biggest carnivorous dinosaurs before the tyrannosaurids appeared some 50 million years later. Allosaurus's long, muscular hind limbs supported a body weighing two tonnes or more. The huge but lightweight skull consisted largely of bony struts, with bony ridges above the eyes. The immennse, expandable jaws had long, curved, saw-edged teeth. A thick, S-curved neck supported the head, and a long, deep tail counterbalanced the heavy front end of this terrifying theropod.
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