A size comparison of various specimens of the theropod dinosaur genus Allosaurus.
• Silhouettes are based on Allosaurus skeletal reconstructions by Scott Hartman [2] and Henrique Paes [3], used with permission. I, the author, require that Scott Hartman, Henrique Paes and steveoc 86 at Wikimedia Commons get attribution.
• AMNH 4734, DINO 2560 (UUVP 6000), and MOR 693 are scaled using the scale bars in their respective reconstructions. The average size of adult Allosaurus fragilis specimens are estimated at ~8.5 m . 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, the skull scaled based on figure 16 in Chure et al. (2020). SMA 0005 silhouette based on Fig 1 in Foth et al. (2013) with some details from images of the mount online, scaled to about 7.6 m.
• The holotype of Allosaurus fragilis YPM 1930 is considered undiagnostic, and because of this, a more complete specimen from the same quarry, AMNH 4734, was proposed as a neotype for the species. DINO 2560 is often referred to Allosaurus fragilis. In 2020, Allosaurus jimmadseni was described with DINO 11541 designated the holotype, SMA 0005 and MOR 693 were referred to the species. Allosaurus europaeus, ML 415, is only known from one fragmentary specimen consisting of a partial skull, ribs and a few cervical vertebrae; the silhouette above hypothetical should be viewed with caution.
• Fragmentary allosaur material, which was named Epanterias, may belong to Allosaurus suggesting the genus could grow larger. Epanterias has been estimated 12 to 13 m. A large allosaurid Saurophaganax is also considered a species of Allosaurus by some researchers (Allosaurus maximus).
• Humans are scaled to 170 cm (5 ft 7 in) and 160 cm (5 ft 3 in).
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References
↑Glut, Donald F. (1997) "Allosaurus" in Dinosaurs: The Encyclopedia, Jefferson: McFarland & Co, pp. 105–117 ISBN: 0-89950-917-7.
↑ “Dinosaurs”, in The Princeton Field Guide to Dinosaurs, Princeton University Press, 2011-12-31, ISBN978-1-4008-3615-4, pages 67–67
↑Madsen, James H., Jr. (1993) [1976] Allosaurus fragilis: A Revised Osteology, Utah Geological Survey Bulletin 109 (2 ed.), Salt Lake City: Utah Geological Survey
File:Allosaurus size comparison.svg is an altered version of an image by User:Marmelad which inturn is a vectorized version of an image by User:Dropzink (seen to the right)
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Reverted to version as of 20:45, 14 April 2018 (UTC) Rv good faith edit, the silhouette is scaled to hartman's skeletal. '7.5m' in the literature is probably wrong.