Late Triassic sauropodomorph and Middle Jurassic theropod tracks from the Xichang Basin, Sichuan Province, southwestern China: First report of the ichnogenus Carmelopodus

Xing, Li-Da, Ba, Jin, Lockley, Martin G., Klein, Hendrik, Yan, Sheng-Wu, Romilio, Anthony, Chou, Chun-Yong and Persons, W. Scott (2018) Late Triassic sauropodomorph and Middle Jurassic theropod tracks from the Xichang Basin, Sichuan Province, southwestern China: First report of the ichnogenus Carmelopodus. Journal of Palaeogeography, 7 1: 1-13. doi:10.1016/j.jop.2017.11.004


Author Xing, Li-Da
Ba, Jin
Lockley, Martin G.
Klein, Hendrik
Yan, Sheng-Wu
Romilio, Anthony
Chou, Chun-Yong
Persons, W. Scott
Title Late Triassic sauropodomorph and Middle Jurassic theropod tracks from the Xichang Basin, Sichuan Province, southwestern China: First report of the ichnogenus Carmelopodus
Journal name Journal of Palaeogeography
ISSN 2095-3836
Publication date 2018-01-01
Year available 2018
Sub-type Article (original research)
DOI 10.1016/j.jop.2017.11.004
Open Access Status DOI
Volume 7
Issue 1
Start page 1
End page 13
Total pages 13
Place of publication Beijing, China
Publisher Kexue Chubanshe / Science Press
Language eng
Subject 3305 Geography, Planning and Development
1904 Earth-Surface Processes
1911 Palaeontology
Abstract Upper Triassic and Middle Jurassic strata of the Xichang Basin in Sichuan Province, southwestern China, yielded important dinosaur ichnofossils. From the Xujiahe Formation of the Yiguojiao tracksite, we report a Late Triassic footprint assemblage in China and the first discovery of diagnostic Triassic sauropodomorph tracks in this region. The tracks share a number of features in common with the ichnogenera Eosauropus (Late Triassic) and Liujianpus (Early Jurassic). The neighboring Bingtu tracksite is stratigraphically younger (Shaximiao Formation, Middle Jurassic) and preserves small tridactyl theropod tracks that represent the first occurrence of the ichnotaxon Carmelopodus in China and Asia. While these tracks are morphologically comparable to those from the Middle Jurassic type locality in North America, the specimens from China show the proximal margin of the digit IV impression in a more cranial position, which may indicate a trackmaker with a relatively short metatarsal IV. In addition to the skeletal record, the Carmelopodus footprints document the presence of small theropods in the dinosaur fauna of the Middle Jurassic Shaximiao Formation.
Keyword Dinosaur
Footprints
Assemblages
Revision
Asia
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
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Created: Sat, 14 Apr 2018, 20:03:09 EST