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
Li-Da Xing1,2, Martin G. Lockley3, Hendrik Klein4, Li-Jun Zhang5, Anthony Romilio6, W. Scott Persons IV7, Guang-Zhao Peng8, Yong Ye8, Miao-Yan Wang2
1State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing 100083, China; 2School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China; 3Dinosaur Trackers Research Group, University of Colorado, Denver 80217, USA; 4Saurierwelt Paläontologisches Museum Alte Richt 7, D-92318 Neumarkt, Germany; 5Institute 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, Jiaozuo 454003, Henan Province, China; 6School of Biological Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia; 7Mace Brown Museum of Natural History, Department of Geology and Environmental Geosciences, College of Charleston, Charleston 29401, USA; 8Zigong Dinosaur Museum, Zigong 643013, Sichuan Province, China
Abstract 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.
. 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[J]. , 2021, 10(3): 302-320.
. 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[J]. Journal of Palaeogeography, 2021, 10(3): 302-320.
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