Two new dinosaur tracksites from the Lower Cretaceous Jiaguan Formation of Sichuan Basin, China: specific preservation and ichnotaxonomy. (3rd October 2018)

• Record Type: Journal Article
• Authors: Xing, Lida; Dai, Hui; Lockley, Martin G.; Romilio, Anthony; Klein, Hendrik; Li, Zhongdong; Hu, Xufeng; Peng, Guangzhao; Ye, Yong; Persons IV, W. Scott
• Is Part Of: Historical biology. Volume 30:Number 7(2018)
• Page Start: 976
• Page End: 984
• Publication Date: 2018-10-03
• Subjects: Dinosaur tracks -- Theropod -- Sauropod -- Ornithopod -- Jiaguan Formation -- Lower Cretaceous; GY: Gaoqing-Yongsheng site -- Qijiang District -- Chongqing Municipality -- China -- HB: Huibu site -- Mabian Yi Autonomous County -- Leshan City -- Sichuan Province -- China; Paleobiology -- Periodicals; Biology -- Periodicals; Evolution -- Periodicals; Paleontology -- Periodicals; Biology -- Periodicals; Paleontology -- Periodicals; Evolution -- Periodicals; 560.5
• DOI: 10.1080/08912963.2017.1326113
• Languages: English
• ISSNs: 0891-2963

Abstract

Abstract: 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.