[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

[dinosaur] Two new dinosaur tracksites from Lower Cretaceous of Sichuan, China

Ben Creisler

A new paper:

Lida Xing, Hui Dai, Martin G. Lockley, Anthony Romilio, Hendrik Klein, Zhongdong Li, Xufeng Hu, Guangzhao Peng, Yong Ye & W. Scott Persons IV (2017)
Two new dinosaur tracksites from the Lower Cretaceous Jiaguan Formation of Sichuan Basin, China: specific preservation and ichnotaxonomy.
Historical Biology (advance online publication)
doi:  http://dx.doi.org/10.1080/08912963.2017.1326113   

Two new dinosaur tracksites are reported from the Lower Cretaceous Jiaguan Formation in the Sichuan Basin, Qijiang District of Chongqing. These are the Gaoqing-Yongsheng and the Huibu tracksites, which represent the 13th and 14th reports from this formation. The Gaoqing-Yongsheng tracksite reveals the trackway of a large biped (ornithopod) in association with isolated sauropod tracks and large indeterminate undertracks with radial cracks. These features are preserved as natural casts with pebble infillings in a coarse, cross bedded and very thick bedded sandstone sequence. The Huibu tracksite reveals isolated theropod tracks and ornithopod tracks, the latter having a quadripartite, Caririchnium-like morphology, preserved in a thin bedded sandstone sequence with intercalated mudstone.