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Pedal Proportions of Small and Large Hadrosaurs and Other Potentially Bipedal Ornithischian Dinosaurs

Farlow, JO, Falkingham, PL and Therrien, F Pedal Proportions of Small and Large Hadrosaurs and Other Potentially Bipedal Ornithischian Dinosaurs. Cretaceous Research. ISSN 0195-6671 (Accepted)

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Abstract

Foot skeletons of small (young) hadrosaurid dinosaurs were compared with those of large (adult) hadrosaurids to assess the extent of pedal shape change during ontogeny. Foot skeletons of juvenile hadrosaurids were also compared with those of similar-sized adult, bipedal, non-hadrosaurian ornithischians to which the juvenile hadrosaurids were closer in size, to investigate the possibility that pedal shape change during hadrosaurid ontogeny would have been great enough for feet (and therefore footprints) of young hadrosaurids to have been more similar to those of small-bodied ornithischians than those of large adult hadrosaurids. Although possible allometric shape changes in hadrosaurid pedal proportions are detected, these are so subtle that the feet of young hadrosaurids are far more similar to those of adult hadrosaurs than those of small-bodied, non-hadrosaurid,ornithischians. Footprints made by conspecific hadrosaurids of different size and age are therefore likely to have been similar in shape, and footprints made by juvenile hadrosaurs are unlikely be misidentified as prints made by adults of smaller-bodied, more gracile, bipedal ornithischians.

Item Type: Article
Uncontrolled Keywords: 0403 Geology
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > QH Natural history > QH301 Biology
Q Science > QE Geology > QE701 Paleontology
Divisions: Biological & Environmental Sciences (new Sep 19)
Publisher: Elsevier
Date Deposited: 05 Jul 2021 09:19
Last Modified: 04 Sep 2021 05:18
DOI or Identification number: 10.1016/j.cretres.2021.104945
URI: https://researchonline.ljmu.ac.uk/id/eprint/15204

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