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[dinosaur] Sauropod tracks from Early Jurassic of Guizhou Province, China





Ben Creisler
bcreisler@gmail.com


A new paper:



Lida Xing, Martin G. Lockley, Lizhao Zhang, Hendrik Klein, Yuanwen Zheng, Guangzhao Peng, Shan Jiang, Li Dai & Michael E. Burns (2017)
First Jurassic dinosaur tracksite from Guizhou Province, China: morphology, trackmaker and paleoecology.
Historical Biology (advance online publication)
doi:  http://dx.doi.org/10.1080/08912963.2017.1326485   
http://www.tandfonline.com/doi/full/10.1080/08912963.2017.1326485



Sauropod tracks from the Early Jurassic Maanshan Member of the Ziliujing Formation in the Dazhuanwan area of Guizhou represent the first Jurassic dinosaur track record for this province. The best preserved and longest trackway is narrow gauge (Brontopodus type), and indicates a relatively small trackmaker (footprint length ~35.0 cm). In conjunction with sauropodomorph skeletal remains these tracks suggest that basal sauropodomorphs and primitive sauropods coexisted in this region during the Early Jurassic. This pattern is same in the Lufeng and Sichuan basins. Thus, sauropod tracks from southwest China are diverse in the Early Jurassic, and include narrow gauge Parabrontopodus, wide gauge Brontopodus-type, and basal sauropodomorph tracks.