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Allosaurus was a large bipedal predator for its time. Its skull was light, robust, and equipped with dozens of sharp, serrated teeth. It averaged 8.5 meters (28 ft) in length for A. fragilis, with the largest specimens estimated as being 9.7 meters (32 ft) long. Relative to the large and powerful legs, its three-fingered hands were small and ...
The Ballad of Big Al, [a] marketed as Allosaurus [b] in North America, is a 2000 special episode of the nature documentary television series Walking with Dinosaurs. The Ballad of Big Al is set in the Late Jurassic, 145 million years ago, and follows a single Allosaurus specimen nicknamed "Big Al" whose life story has been reconstructed based on a well-preserved fossil of the same name.
English: Right postorbital OMNH 1771 referred to Saurophaganax maximus and reassessed as a new species of Allosaurus, A. anax, in A , lateral; B, medial; and C, dorsal views.
In 2024, re-examinations of the specimens attributed to Saurophaganax suggested that it is a chimera of multiple dinosaur genera, since some specimens most likely belong to a diplodocid sauropod, while the other referred allosaurid specimens belong to a novel species of Allosaurus, named as Allosaurus anax. [9]
In 2020, Allosaurus jimmadseni was described with DINO 11541 designated the holotype, SMA 0005 and MOR 693 were referred to the species. [7] Allosaurus europaeus , ML 415, is only known from one fragmentary specimen consisting of a partial skull, ribs and a few cervical vertebrae; [ 8 ] the silhouette above hypothetical should be viewed with ...
It has been described as its own genus, [4] or as a species of Allosaurus: Allosaurus maximus. [7] A review of basal tetanurans in 2004 and Carrano et al.'s comprehensive 2012 analysis of Tetanurae accepted Saurophaganax as a distinct genus. [8] [9] Possible Saurophaganax material from New Mexico may clear up the status of the genus. [10]
An Allosaurus pubic foot shows marks by the teeth of another theropod, probably Ceratosaurus or Torvosaurus. The location of the bone in the body (along the bottom margin of the torso and partially shielded by the legs) and the fact that it was among the most massive in the skeleton indicates that the Allosaurus was being scavenged. [52]
Yangchuanosaurus is an extinct genus of metriacanthosaurid theropod dinosaur that lived in China from the Middle Jurassic to Late Jurassic periods (Bathonian to Tithonian stages), and was similar (although slightly larger) in size and appearance to its North American and European relative, Allosaurus.