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Summary

Description

Daspletosaurus torosus life restoration,

• Based proportionally on a Gregory Paul skeletal reconstruction in Tyrannosaurus Rex, the Tyrant King by Peter Larson and Kenneth Carpenter (2008).[1]
• It's not clear whether derived tyrannosaurs would have been covered in scales or feathers or a combanation of both. A few small skin impressions have been known for tyrannosaurids which show lightly Pebbled skin; these are small, averaging 2.4mm.[2] Skin impressions from the closley related Gorgosaurus are reported to show both smooth, naked skin and scales.[3] [4] A 2017 study looked at a variety of tyranosaurid skin impressions and came to the conclusion that derived tyrannosaurs were probably scaly over most their body. [5] Another study in 2017 suggests that there may have been large, flat Crocodile-like skin cracks/scales on the front of the snout of Tyrannosaurs. [6]
What complicates the issue is that most coelurosaur fossils show feathers covering thier bodies and inference would suggest the same for tyrannosaurs. The smaller basal tyrannosauriod Dilong and the larger tyrannosauroid Yutyrannus also preserve feather impressions. This raises the probability that, derived tyrannosaurs had a mix of feathers and scales on different parts of the body or that feathers were lost as individuals reach maturity [7] [8]
• The muscles are based on a diagram by Scott Hartman [1] with some details from [9].
• The colours and patterns, as with nearly all reconstructions of prehistoric creatures, are speculative.

Note: I often update my images; If you want to post this image on other websites, if possible, please link to the original file here. This will allow others to see the most recent version. Thanks.

References

  1. Paul, Gregory S. (2008) "The extreme lifestyles and habits of the gigantic tyrannosaurid superpredators of the Late Cretaceous of North America and Asia" in Tyrannosaurus rex, the Tyrant King (Life of the Past), Bloomington: Indiana University Press, p. 316 ISBN: 0-253-35087-5.
  2. Currie, Philip; Badamgarav, Demchig; Koppelhus, Eva. (2003). "'The First Late Cretaceous Footprints from the Nemegt Locality in the Gobi of Mongolia'" (PDF). Ichnos 10 (1): 1-13. Archived from the original on 2009-07-20. Retrieved on 2009-11-11.
  3. Currie, P. (2001). 2001 A. Watson Armour Symposium: The Paleobiology and Phylogenetics of Large Theropods. Field Museum of Natural History, Chicago.
  4. Carpenter, Kenneth (1997) "Tyrannosauridae" in Currie, Philip J. & Padian, Kevin (eds.). , ed. Encyclopedia of Dinosaurs, San Diego: Academic Press, pp. 768 ISBN: 0-12-226810-5.
  5. Bell, P R., et al (2017). "Tyrannosauroid integument reveals conflicting patterns of gigantism and feather evolution". Biology Letters. DOI:10.1098/rsbl.2017.0092.
  6. (2017). "A new tyrannosaur with evidence for anagenesis and crocodile-like facial sensory system". Scientific Reports 7: 44942. DOI:10.1038/srep44942.
  7. Xu, X., Norell, M. A., Kuang, X., Wang, X., Zhao, Q., Jia, C. (2004). "Basal tyrannosauroids from China and evidence for protofeathers in tyrannosauroids". Nature 431: 680–684. DOI:10.1038/nature02855.
  8. (2012). "A gigantic feathered dinosaur from the Lower Cretaceous of China" (PDF). Nature 484: 92–95. DOI:10.1038/nature10906. PMID 22481363.
  9. Persons, Scott; Currie, Philip. (2010). "'The Tail of Tyrannosaurus: Reassessing the Size and Locomotive Importance of the M. caudofemoralis in Non-Avian Theropods'". The Anatomical Record 294: 119-131.
Date 18 March 2007 (original upload date)
Source Originally from en.wikipedia; description page is/was here.
Author Steveoc 86 at English Wikipedia

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File history

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Date/TimeThumbnailDimensionsUserComment
current08:51, 25 November 2017Thumbnail for version as of 08:51, 25 November 20171,280 × 533 (145 KB)FunkMonkLet the artist decide.
08:17, 25 November 2017Thumbnail for version as of 08:17, 25 November 20171,024 × 427 (57 KB)AKMadRexMore likely version
19:45, 30 July 2017Thumbnail for version as of 19:45, 30 July 20171,280 × 533 (145 KB)Steveoc 86Reduce feathering to dorsal surface and other adjustments
21:41, 10 April 2017Thumbnail for version as of 21:41, 10 April 20171,280 × 533 (161 KB)Steveoc 86Minor Tweaks
20:37, 10 April 2017Thumbnail for version as of 20:37, 10 April 20171,280 × 533 (162 KB)Steveoc 86Edit head details and other adjustments.
21:07, 15 June 2016Thumbnail for version as of 21:07, 15 June 20161,280 × 533 (167 KB)Steveoc 86Tweaks
11:59, 4 September 2013Thumbnail for version as of 11:59, 4 September 20131,200 × 493 (155 KB)Steveoc 86Add Feathers.
13:40, 22 May 2013Thumbnail for version as of 13:40, 22 May 20131,200 × 493 (125 KB)Steveoc 86Tweaks
13:49, 14 July 2011Thumbnail for version as of 13:49, 14 July 20111,200 × 493 (153 KB)Steveoc 86Tweaks
18:58, 15 March 2011Thumbnail for version as of 18:58, 15 March 20111,200 × 493 (153 KB)Steveoc 86Tweaks
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