18
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Appendicular skeleton of Protoceratops andrewsi (Dinosauria, Ornithischia): comparative morphology, ontogenetic changes, and the implications for non-ceratopsid ceratopsian locomotion

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Protoceratops andrewsi is a well-known ceratopsian dinosaur from the Djadokhta Formation (Upper Cretaceous, Mongolia). Since the 1920s, numerous skeletons of different ontogenetic stages from hatchlings to adults, including fully articulated specimens, have been discovered, but the postcranial anatomy of Protoceratops has not been studied in detail. A new, mostly articulated subadult individual provides an excellent opportunity for us to comprehensively describe the anatomy of the limb skeleton, to compare to other ceratopsian dinosaurs, and to study the ontogenetic and intraspecific variation in this species. New data provided by the specimen shed light on the lifestyle of P. andrewsi. The young subadult individuals present an array of morphological characters intermediate between the bipedal Psittacosaurus and fully quadrupedal adult P. andrewsi. We compare these observations with a broad range of non-ceratopsid Neoceratopsia (of various locomotor adaptations) and Psittacosauridae (obligate bipeds), which gives us insight into the evolution of the skeletal characters informative for the postural change in ceratopsian dinosaurs.

          Related collections

          Most cited references74

          • Record: found
          • Abstract: not found
          • Book: not found

          The Dinosauria

            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            PAST: Palentontological statistics software package for education and data analysis

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Late Mesozoic stratigraphy and vertebrates of the Gobi Basin

                Bookmark

                Author and article information

                Contributors
                Journal
                PeerJ
                PeerJ
                PeerJ
                PeerJ
                PeerJ
                PeerJ Inc. (San Diego, USA )
                2167-8359
                22 July 2019
                2019
                : 7
                : e7324
                Affiliations
                [1 ]Department of Evolutionary Paleobiology, Institute of Paleobiology, Polish Academy of Sciences , Warsaw, Poland
                [2 ]Laboratory of Paleoherpetology, Paleontological Institute, Russian Academy of Sciences , Moscow, Russia
                [3 ]Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences , Beijing, China
                Article
                7324
                10.7717/peerj.7324
                6657679
                b0dae70f-795e-4ab8-b3d7-307772892561
                © 2019 Słowiak et al.

                This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.

                History
                : 21 March 2018
                : 19 June 2019
                Funding
                Funded by: Russian Foundation for Basic Research
                Award ID: 16-05-00408
                Funded by: University of Warsaw student
                Financial support for this study comes from Russian Foundation for Basic Research grant No. 16-05-00408 to Victor S. Tereshchenko and the University of Warsaw student grants to Justyna Słowiak. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
                Categories
                Evolutionary Studies
                Paleontology

                ceratopsian dinosaurs,limb morphology,locomotion,ornithischia,ontogeny,stance

                Comments

                Comment on this article