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PALAEOECOLOGICAL AND STRATIGRAPHICAL SIGNIFICANCE OF THE DINOSAUR FOOTPRINTS FROM THE LOWER CRETACEOUS LUOHE FORMATION IN NORTHERN SHAANXI PROVINCE, NW CHINAFull-text in Chinese

LI Xing Wen;TANG Yong Zhong;XING Li Da;WANG Qin Wei;WU Hao;Shaanxi Institute of Geological Survey;Yan’an & Xi’an Scientific Investigation and Research Base of IAG;School of the Earth Sciences and Resources,China University of Geosciences;

Abstract:Dinosaur footprints from the Lower Cretaceous Luohe Formation in northern Shaanxi Province, NW China provide fossil evidence for understanding the individual characteristics, walking mode, speed and living habits of dinosaurs in this area, which are conducive to restore the dinosaur fauna, palaeoecology and palaeogeography. On the basis of previous studies, the palaeoecological and stratigraphical significance of dinosaur footprints from the Luohe Formation in northern Shaanxi Province is discussed. The morphological characteristics of the dinosaur footprints show that they were made by small theropods, and the trackway characteristics indicates that all the trackmakers were in the normal walking state, bipedal for the dinosaur trackmakers and quadrupedal for the small mammaliaform trackmakers. Several parallel trackways from the tracksite in Longzhou of Jingbian imply the gregarious habits of small theropod dinosaurs. The footprint assemblage from the tracksite in Zhongji of Shenmu represents the first discovery of Brasilichnium ichnofacies in Asia, which provides new evidence for the intercontinental stratigraphical correlation. The discovery of dinosaur footprints from the Lower Cretaceous Luohe Formation in northern Shaanxi Province enlarges the geographical and stratigraphical distribution of the dinosaur footprints in NW China, and provides new materials for further research on the Early Cretaceous dinosaur fauna, palaeoecology, palaeogeography and palaeoenvironment in this region.
  • DOI:

    10.19839/j.cnki.dcxzz.2021.0016

  • Series:

    (A) Mathematics/ Physics/ Mechanics/ Astronomy

  • Subject:

    Geology; Biology

  • Classification Code:

    Q915

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