Early Jurassic sauropod tracks from the Yimen Formation of Panxi region, Southwest China: Ichnotaxonomy and potential trackmaker
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Abstract:
恐龙足迹和骨骼的记录往往出现在不同的地区。然而, 一些地层显示了关系紧密的骨骼和足迹, 它们都指向同一个来源。报道了来自四川省攀西地区会理县通安镇通保村下侏罗统益门组中上部的蜥脚类足迹(雷龙足迹Brontopodus), 其地理和地层归属均与真蜥脚类的何氏通安龙极为接近。通保足迹与造迹者的关联是可能的, 但目前还需要更多的证据。通保的雷龙足迹是攀西地区首次发现侏罗纪的蜥脚类足迹, 这也表明, 在早侏罗世, 原始蜥脚类和基干蜥脚型类共存于中国西南地区。
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Keywords:
- dinosaur tracks /
- sauropod /
- Yimen Formation /
- Lower Jurassic /
- Tong'an
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Acknowledgements: We thank Yong Ye (Zigong Dinosaur Museum, China) for their suggestions on an earlier version of the manuscript. This research project was supported by the 2013 and 2015 support fund for graduate student’s science and technology innovation from China University of Geosciences (Beijing), China.
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Table 1 Measurements of sauropod tracks from the Tongbao tracksite, Sichuan Province, China
cm No. ML MW ML/MW TB-SI-1p 41.5 37.8 1.1 TB-SI-1m 14.5 36.0 0.4 TB-SI-2p 33.8 27.0 1.3 TB-SI-3m 22.0 38.7 0.6 Note:ML—Maximum length; MW—Maximum width; ML/MW—Maximum length/Maximum width 
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