Reassessment of the earliest documented stegosaurian fossils from Asia |
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| Institution: | 1. Museum of Evolution, Uppsala University, Norbyvägen 16, SE-752 36, Uppsala, Sweden;2. Australian Age of Dinosaurs Natural History Museum, The Jump-Up, Winton, Queensland, 4735, Australia;3. Monash University, Wellington Road, Clayton, Victoria, 3800, Australia;1. Laboratório de Paleontologia de Ribeirão Preto, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, 14040-901, Ribeirão Preto, São Paulo, Brazil;2. Instituto de Ciências Exatas, Naturais e Educação, Universidade Federal do Triângulo Mineiro, Departamento de Ciências Biológicas, Av. Doutor Randolfo Borges Júnior, 38064-200, Uberaba, Minas Gerais, Brazil;3. Departamento de Paleontologia e Estratigrafia, Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Agronomia, 91540–000, Porto Alegre, Rio Grande do Sul, Brazil;4. Centro de Pesquisas Paleontológicas “Llewelyn Ivor Price”, Universidade Federal do Triângulo Mineiro, Peirópolis, Estanislau Collenghi 194, 38039-755, Peirópolis, Uberaba, Minas Gerais, Brazil;1. The University Museum, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan;2. Fukui Prefectural Dinosaur Museum, 51-11 Terao, Muroko, Katsuyama-Shi, Fukui, 911-8601, Japan;3. Dinosaur Research Institute, Fukui Prefectural University, 4-1-1 Kenjojima, Matsuoka, Eiheiji-Cho, Fukui, 910-1195, Japan;4. Northeastern Research Institute of Petrified Wood and Mineral Resources, Nakhon Ratchasima Rajabhat University, Mueang, Nakhon Ratchasima, 30000, Thailand;1. Department of Natural Sciences, Transylvanian Museum Society, 2-4 Napoca Street, 400009 Cluj-Napoca, Romania;2. Faculty of Environmental Science and Engineering, Babe?-Bolyai University, 30 Fântânele Street, 400294 Cluj-Napoca, Romania;3. Department of Geology, Faculty of Geology and Geophysics, University of Bucharest, 1 N. B?lcescu Blvd., 010041 Bucharest, Romania;4. School of GeoSciences, University of Edinburgh, Grant Institute, The King''s Buildings, West Mains Road, Edinburgh EH9 3JW, UK;5. Ocean and Earth Sciences, National Oceanography Centre, University of Southampton, European Way, Southampton SO13 3ZH, UK;6. Division of Paleontology, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, USA;1. Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China;2. Long Hao Institute of Geology and Paleontology, Hohhot 010010, China;3. Bureau of Land and Resources of Bayannur, Bayannur 015000, China;4. Inner Mongolia Museum of Natural History, Hohhot 010020, China;5. Beijing Museum of Natural History, Beijing Academy of Science and Technology, Beijing 100050, China;1. The Geology Museum, 1215 W. Dayton St., Madison, WI 53706, USA;2. Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya ul. 123, Moscow 117997, Russia |
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| Abstract: | In 1929, the famous Swedish palaeontologist Carl Wiman documented the first unequivocal stegosaurian dinosaur fossils from Asia. His material comprised an isolated dermal spine, together with a dorsal vertebra that was briefly described but never figured. Since then these remains have languished in obscurity, being noted in some stegosaur review articles but often ignored altogether. However, recent auditing of the Museum of Evolution palaeontological collection at Uppsala University in Sweden has led to the rediscovery of Wiman's original specimens, as well as two additional previously unrecognised stegosaurian dorsal vertebrae. All of these bones derive from the Lower Cretaceous (Berriasian–Valanginian) Mengyin Formation of Shandong Province in eastern China, and are morphologically compatible with the stratigraphically proximal stegosaurian taxon Wuerhosaurus from the Valanginian–Albian Tugulu Group in the Xinjiang Uyghur Autonomous Region of Western China. Wiman's seminal stegosaurian fossils thus expand current palaeobiogeographical distributions, and contribute to the otherwise enigmatic record of Early Cretaceous stegosaurian occurrences globally. |
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| Keywords: | Dinosauria Stegosauria Early Cretaceous Mengyin Formation China |
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