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[dinosaur] Cretaceous dinosaur tracks from Hengshan Formation, Zhejiang, China




Ben Creisler
bcreisler@gmail.com

A new paper:

Lida Xing, Martin G. Lockley, Hendrik Klein, Chunyong Chou, Donghao Wang & W. Scott Persons IV (2019)
A mid-Cretaceous dinosaur track assemblage from the Hengshan Formation in central Zhejiang, China.
Historical Biology (advance online publication)
doi: Âhttps://doi.org/10.1080/08912963.2019.1675053
https://www.tandfonline.com/doi/full/10.1080/08912963.2019.1675053



The Cretaceous Hengshan Formation at the Baxian tracksite, central Zhejiang has yielded more than 20 sauropod tracks with a considerable size range (pes length ranging from 22.7-83.7 cm). The assemblage consists of a more complete trackway of a large animal, a less complete trackway of a large animal with a similar orientation and, a small manus-pes set indicating a smaller trackmaker. Thus, it is a small ichnoassociation with tracks indicating different-sized trackmakers that moved in different directions. From a global perspective the assemblage is important, because it is another data point indicating the presence of different size-classes and mixed associations with very small and large sauropods, probably representing juvenile and adult individuals. These tracks are the first reported from the mid-Cretaceous of this region, being therefore slightly younger than those already known from Early Cretaceous sites, which are also attributed to sauropods.



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