The new ichnotaxon Eubrontes nobitai ichnosp. nov. and other saurischian tracks from the Lower Cretaceous of Sichuan Province and a review of Chinese Eubrontes-type tracks

Journal of Palaeogeography

Martin G. Lockley¹  Li-Jun Zhang²  W. Scott Persons³  Hendrik Klein⁴  Anthony Romilio⁵  Miao-Yan Wang⁶  Li-Da Xing⁷  Yong Ye⁸  Guang-Zhao Peng⁸ 

[1] Dinosaur Trackers Research Group, University of Colorado Denver, 80217, Denver, USA;Institute of Resources and Environment, Key Laboratory of Biogenic Traces and Sedimentary Minerals of Henan Province, Collaborative Innovation Center of Coalbed Methane and Shale Gas for Central Plains Economic Region, Henan Polytechnic University, 454003, Jiaozuo, Henan Province, China;Mace Brown Museum of Natural History, Department of Geology and Environmental Geosciences, College of Charleston, 29401, Charleston, USA;Saurierwelt Paläontologisches Museum Alte Richt 7, 92318, Neumarkt, Germany;School of Biological Sciences, The University of Queensland, 4072, Brisbane, Queensland, Australia;School of the Earth Sciences and Resources, China University of Geosciences, 100083, Beijing, China;State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, 100083, Beijing, China;School of the Earth Sciences and Resources, China University of Geosciences, 100083, Beijing, China;Zigong Dinosaur Museum, 643013, Zigong, Sichuan Province, China;

关键词: Ichnofossils;    Dinosaur footprints;    Theropod;    Myths;   

DOI  :  10.1186/s42501-021-00096-y

来源: Springer

【 摘 要 】

The Jiaguan Formation and the underlying Feitianshan Formation (Lower Cretaceous) in Sichuan Province yield multiple saurischian (theropod–sauropod) dominated ichnofaunas. To date, a moderate diversity of six theropod ichnogenera has been reported, but none of these have been identified at the ichnospecies level. Thus, many morphotypes have common “generic” labels such as Grallator, Eubrontes, cf. Eubrontes or even “Eubrontes-Megalosauripus” morphotype. These morphotypes are generally more typical of the Jurassic, whereas other more distinctive theropod tracks (Minisauripus and Velociraptorichnus) are restricted to the Cretaceous. The new ichnospecies Eubrontes nobitai ichnosp nov. is distinguished from Jurassic morphotypes based on a very well-preserved trackway and represents the first-named Eubrontes ichnospecies from the Cretaceous of Asia.

【 授权许可】

CC BY