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Unusual dinosaur trackway preservation as clues to paleo-landscape and behavior from the Lower Cretaceous Luohe Formation,Shaanxi Province,China

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Geoscience Frontiers 2021年第2期12卷 737-745页

作者： Lida Xing Martin G.Lockley Yongzhong Tang Hendrik Klein W.Scott Persons IV Miaoyan Wang Xingwen Li Hao Wu State Key Laboratory of Biogeology and Environmental Geology China University of GeosciencesBeijingChina School of the Earth Sciences and Resources China University of GeosciencesBeijingChina Dinosaur Trackers Research Group University of Colorado DenverPO Box 173364DenverCO 80217USA Shaanxi Institute of Geological Survey Xi'an 710054ShaanxiChina Saurierwelt Paläontologisches Museum Alte Richt 7D–92318 NeumarktGermany Mace Brown Museum of Natural History Department of Geology and Environmental GeosciencesCollege of CharlestonCharleston 29401USA

Poorly preserved tracks have limited ichnotaxonomic or biotaxon utility,but may reveal useful information about the paleoenvironment,behavior and track *** mostly parallel to sub parallel trackway segments(T1–T8)were registered on a truncation surface in the Lower Cretaceous Luohe Formation of Shaanxi *** attest to the passage of several bipeds,probably all theropods,in a paleo-contour-parallel,south-north direction in an arid *** of preservation in these trackways is poor,but notably superior in two additional trackways(T9–T10)on a foreset *** T9 indicates a didactyl trackmaker,probably a deinonychosaurian,heading north to *** is the 13th report of deinonychosaurian tracks from the Lower Cretaceous of *** any or all the eight south-north oriented trackway segments represent continuations of other segments in the same trackways,the total number of individual trackmakers heading in this direction may have been as lowas *** the trackway pattern and sedimentological evidence could indicate a physically controlled pathway influencing the direction taken by these trackmakers,the possibility that the trackways also represented small social or gregarious group cannot be ruled out.

关键词： theropod tracks Ornithischian tracks Deinonychosaurian Dunes sediments

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Lower Cretaceous sauropod trackways from Lishui City and an overview of dinosaur dominated track assemblages from Zhejiang Province, China

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Journal of Palaeogeography 2018年第4期7卷 326-336页

作者： Li-Da Xing Chun-Yong Chou Martin G.Lockley Anthony Romilio Hendrik Klein Nan Li W. Scott Persons IV state key laboratory of biogeology and environmental geology china university of geosciencesBeijing 100083China school of the earth sciences and resources china university of geosciencesBeijing 100083China state key laboratory of palaeobiology and stratigraphy nanjing institute of geology and palaeontologychinese academy of sciencesnanjing 210008China dinosaur tracks museum university of colorado denverpo box 173364denverco 80217usa school of biological sciences the university of queenslandbrisbaneqld 4072australia saunerwelt palaontologisches museum alte richt 7d-92318 neumarktgermany department of biological sciences university of alberta11455 saskatchewan driveedmontonab t6g 2e9canada

A relatively small number of tetrapod tracksites from Zhejiang Province fills out the fossil record from that region,which is also known to have yielded both saurischian（titanosauriform, coelurosaur） and ornithischian（basal ornithopod, ankylosaurian） body fossils as well as dinosaurian eggs. We use photogrammetry and 3 D imaging to reinterpret the sauropod tracks from Lishui City, which revealed the existence of trackways. The track record from three documented sites in Zhejiang Province includes avian and non-avian theropod, sauropod, ornithopod and pterosaur tracks. Previous work showed that the purported new bird ichnospecies Dongyangornipes sinensis is a synonym of Uhangrichnus chuni, while we here consider Pteraichnus dongyangensis as a nomen dubium. Such ＂provincial ichnotaxonomy＂ may mask similarities in the ichnofauna across large regions. In fact, we show that the ichnofauna is similar to that found in the Early Cretaceous elsewhere in China.

关键词： Sauropod tracks theropod tracks Bird tracks Pterosaur tracks Lishui Basin Zhejiang Province

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