The Chaochuan Formation is a geologic formation in China (Zhejiang Province). It is made up of purplish red calcarenaceous, muddy siltstone, fine-grained sandstone with interbeds of tuffaceous sandstone and conglomerate or rhyolitic tuff.(2009) Chaochuan Formation. In: Zhang S. (eds) Geological Formation Names of China (1866–2000). Springer, Berlin, Heidelberg

Fossil content The following fossils were reported from the formation:

Dinosaurs

Ornithischians Ornithischians of the Chaochuan FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage Dongyangopelta D. yangyanensis Zhejiang Province, China Albian to Cenomanian A nodosaurid ankylosaur ZhejiangosaurusLü Junchang; JIN Xingsheng; SHENG Yiming; LI Yihong; WANG Guoping; Yoichi AZUMA (2007). "New nodosaurid dinosaur from the Late Cretaceous of Lishui, Zhejiang Province, China". Acta Geologica Sinica (English ed.). 81 (3): 344–350. doi:10.1111/j.1755-6724.2007.tb00958.x. Z. lishuiensis Zhejiang Province, China Canomanian A euankylosaurian anylosaur

Theropods Theropods of the Chaochuan FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage Therizinosauridae Indet.Z. Dong. 1979. Cretaceous dinosaurs of Hunan, China. Mesozoic and Cenozoic Red Beds of South China: Selected Papers from the "Cretaceous-Tertiary Workshop", Institute of Vertebrate Paleontology and Paleoanthropology & Nanjing Institute of Paleontology (eds.), Science Press, Nanxiong, China 342-350M.-p. Qian, Z.-y. Zhang, Y. Jiang, Y.-g. Jiang, Y.-j. Zhang, R. Chen, and G.-f. Xing. 2012. [Cretaceous therizinosaurs in Zhejiang of eastern China]. Journal of Geology 36(4):337-348L. E. Zanno. 2010. Osteology of Falcarius utahensis (Dinosauria: Theropoda): characterizing the anatomy of basal therizinosaurs. Zoological Journal of the Linnean Society 158(1):196-230 Indeterminate Zhejiang Province, China Cenomanian A therizinosaurid therizinosauroid; once known as "Chilantaisaurus" zheziangensis Grallator G. isp. Zhejiang Province, China 14 isolated tracks Likely produced by a non-arctometatarsalian theropods cf. Asianopodus cf. I. isp. Zhejiang Province, China 21 tracks Showing possible gregarious behavior based on all tracks oriented in the sane direction. Likely produced by an ornithomimosaurian trackmaker.

References