Parksosaurids-Scale-Comparison-SVG-001.svg

Summary

Description
English: A scale diagram comparing three parksosaurid dinsosaur genera, Orodromeus , Parksosaurus and Thescelosaurus to a Human.
• Parksosaurus silhouette is based on File:Parksosaurus Steveoc86.jpg, which is based proportionally on a reconstruction in [1] scaled to a femur length of 270mm. [2]
• Orodromeus silhouette is based on a skeletal reconstruction by Scott Hartman, used with permission. [1] Scaled based on data in Scheetz 1999. [3]
• Thescelosaurus silhouette is based on a skeletal by Genya Masukawa, used with permission. Silhouettes were scaled using the scale bars provided. [2]
• The feathery outlines are speculative but based loosely on related dinosaurs. In 2009 the Heterodontosaur Tianyulong was described, which shows filamentous quill-like structures along its back and underside. [4] In 2014, Kulindadromeus was described and showed a mix of feather-like structures and scales. [5]
• Humans 170 cm and 160 cm, respectively.

References

  1. ↑ Paul, G.S. , ed. (2000) The Scientific American Book of Dinosaurs , St. Martin's Press ISBN : 0-312-26226-4 .
  2. ↑ Galton, Peter M. (1974). "Notes on Thescelosaurus , a conservative ornithopod dinosaur from the Upper Cretaceous of North America, with comments on ornithopod classification". Journal of Paleontology 48 (5): 1048–1067.
  3. ↑ Scheetz, R.D., 1999, Osteology of Orodromeus makelai and the phylogeny of basal ornithopod dinosaurs D. Ph. Thesis in Biology, Montana State University, Bozeman, 189 pp
  4. ↑ Zheng, Xiao-Ting ( 19 March 2009 ). "An Early Cretaceous heterodontosaurid dinosaur with filamentous integumentary structures". Nature 458 (7236): 333–336. DOI : 10.1038/nature07856 . PMID 19295609 .
  5. ↑ Godefroit, P., Sinitsa, S.M., Dhouailly, D., Bolotsky, Y.L., Sizov, A.V., McNamara, M.E., Benton, M.J., and Spagna, P. 2014. "A Jurassic ornithischian dinosaur from Siberia with both feathers and scales." Science , 345 (6195): 451-455. Published 25 Jul 2014. doi : 10.1126/science.1253351
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Author Steveoc 86
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4 July 2018