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العربية: جُمجُمة ألوصور: رسمٌ يُظهرُ أقصى حد لِفتحة فم الألوصور كما افترض روبرت باكر
English: Allosaurus skull: Showing the maximum possible gape of Allosaurus as hypothesized by Robert Bakker
• The wide gape is based on figure 6 in 'Bakker 1998'. The head shape is based on specien AMNH 666, what Bakker calls 'Creosaur style allosaur'. [1] 'Creosaurus' is genrally thought to be synonymous with Allosaurus. A study in 2015 using computer models came to a similar conclusion. [2]
• The skin details are partly speculative. A juvenille allosaur is known to have had scaly skin on some parts of its body[3]. Up until recently large theropods with skin impressions have shown 'typical dinosaurian' scales.[4] In 2012 Yutyrannus was described, it showed that large theropods could have been covered in feathers [5]. There are many dinosaurs being discovered from all over the family tree with evidence of quils or feathers so it is possible that allosaurs also had them (see Feathered Dinosaur).

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References

  1. ↑ Bakker, Robert T. (1998). "Brontosaur killers: Late Jurassic allosaurids as sabre-tooth cat analogues" (pdf). Gaia 15: 145–158. ISSN 0871-5424.
  2. ↑ Lautenschlager, Stephan (2015). "Estimating cranial musculoskeletal constraints in theropod dinosaurs" (pdf). Royal Society Oepn Science 2.
  3. ↑ Pinegar, Richard. Tyler; et al. (2003). "A Juvenile Allosaur with Preserved Integument from the Basal Morrison Formation of Central Wyoming". SVP Conference Abstracts.
  4. ↑ Currie, Philip J and Kevin Padian , ed. (1997) , Academic Press, p. 100
  5. ↑ (2012). "A gigantic feathered dinosaur from the Lower Cretaceous of China" (PDF). Nature 484: 92–95. DOI:10.1038/nature10906. PMID 22481363.
Date Original version 2007
Source Own work
Author Steveoc 86

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Date/TimeThumbnailDimensionsUserComment
current21:56, 25 April 2021Thumbnail for version as of 21:56, 25 April 20211,024 × 768 (280 KB)Steveoc 86Slight skull changes, lips, other cosmetic adjustments.
15:11, 1 May 2019Thumbnail for version as of 15:11, 1 May 20191,024 × 768 (216 KB)Steveoc 86Reduce tongue other adjustments.
22:55, 21 December 2017Thumbnail for version as of 22:55, 21 December 20171,024 × 768 (223 KB)Steveoc 86Minor Tweaks.
23:28, 10 April 2017Thumbnail for version as of 23:28, 10 April 20171,024 × 768 (222 KB)Steveoc 86Add Eye Hood, and other tweaks.
14:24, 22 November 2015Thumbnail for version as of 14:24, 22 November 20151,024 × 768 (245 KB)Steveoc 86Updates: Tweaks, add patterns etc
12:14, 11 November 2011Thumbnail for version as of 12:14, 11 November 20111,250 × 981 (684 KB)Steveoc 86Tweak
14:57, 10 November 2011Thumbnail for version as of 14:57, 10 November 20111,250 × 981 (685 KB)Steveoc 86Tweaks
17:06, 15 May 2011Thumbnail for version as of 17:06, 15 May 20111,250 × 981 (663 KB)Steveoc 86Update.
13:00, 21 March 2010Thumbnail for version as of 13:00, 21 March 20101,600 × 1,255 (1.08 MB)Steveoc 86Tweaks.
14:09, 9 November 2008Thumbnail for version as of 14:09, 9 November 20081,600 × 1,255 (1 MB)Steveoc 86tweaks
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