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The completeness, preservation, and scientific importance of this skeleton gave "Big Al" its name. The individual itself was below the average size for Allosaurus fragilis, [36] as it was a subadult estimated at only 87% grown. [38] The specimen was described by Breithaupt in 1996. [34]
The average size of adult Allosaurus fragilis specimens are estimated at ~8.5 m [1]. DINO 11541 is based on figures 3 and 4 in Chure et al. (2020). Allosaurus europaeus, ML 415, is scaled to ~7 m based on an estimate by Greg Paul, [2] the skull scaled based on figure 16 in Chure et al. (2020). SMA 0005 silhouette based on Fig 1 in Foth et al ...
The larger and more common Allosaurus fragilis was usually around 10 m / 32 ft (Glut 1997, Foster 2007). Specimens from both genera are known in larger sizes, but these are probably typical. Specimens from both genera are known in larger sizes, but these are probably typical.
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]
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]
Allosaurus. These dinosaurs roamed the Earth millions of years ago during the Jurassic period. They were a deadly carnivore that ran on up to 21 mph. ... While they may be small in size, they are ...
While digging for sauropods in the Big Horn Basin, a team with The Children's Museum found an unexpectedly well-preserved predator.
Based on size alone, Barinasuchus is pretty scary, ... For reference, theropods were some of the scariest predators on earth and included Tyrannosaurus, Allosaurus, and Velociraptor.