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[dinosaur] Chubut Group fauna, Gulf San Jorge Basin, Argentina + Wangshi Group dinosaur bone beds + Triassic Xingyi fauna date (free pdfs)

Ben Creisler

Some recent non-English-language papers in open access:

Gabriel A. Casal, Rubén D. Martínez & Marcelo Luna (2016)

Faunistic arrangement of the Upper Cretaceous of Chubut Group, Gulf San Jorge Basin, Argentina.

Revista Brasileira de Paleontologia 19(1): 53-70 (in Spanish)

doi: 10.4072/rbp.2016.1.05



The Chubut Group, central Patagonia, Argentina, is characterized by a lacustrine and fluvial-lacustrine system with variable participation of volcanic ash. This group includes the Bajo Barreal Formation (Cenomanian-Turonian) and a recently nested new lithostratigraphic unit, the Lago Colhué Huapi Formation (Coniacian-Maastrichtian). The Lago Colhué Huapi Formation overlies the Bajo Barreal Formation. These sedimentary units preserve a rich and diverse vertebrate fossil record including, among others, representatives of Crocodylomorpha, Testudines, Pterosauria and abundant Dinosauria. Nevertheless, the stratigraphic position of several of its taxa has been historically controversial. The unclear stratigraphic provenance of these taxa diffi cults the correct interpretation of the relationships with other Patagonian and South American basins. In this context, we present a detailed stratigraphic study to clarify the position of the vertebrate fossils of both Late Cretaceous formations. We also discuss the implications of this faunistic arrangement in terms of vertebrate evolution and paleobiogeography. Finally, this study broadens our knowledge on the fossil fauna of these units and therefore the vertebrate assemblages of central Patagonia.



NOTE: To download the pdfs, click on the active blue Chinese text at the end on the third line of text from the top.

An Wei, Kuang Hongwei, Liu Yongqing, Peng Nan, Xu Kemin, Xu Huan, Zhang Peng, Wang Kebo, Chen Shuqing & Zhang Yanxia (2015)

Detrital Zircon Dating and Tracing the Provenances of Dinosaur Bone Beds from the Late Cretaceous Wangshi Group in Zhucheng, Shandong.

Geological Review 2016 (2): 423-471 (in Chinese with English summary)

doi: 10.16509/j.georeview.2016.02.017



The mass burial of dinosaur bone fossils in the Upper Cretaceous Wangshi Group in Zhucheng Basin has been a research focus in recent years. However, the provenance of the dinosaur bone fossils and the accurate depositional age of the bone beds remain ambiguous. We study the depositional age of the dinosaur bone beds and trace their provenances.


Li Guang, Sunzuo Yu, Jiang Dayong & Ji Cheng (2016)

LA-ICP-MS U-Pb age of the fossil layer of Triassic Xingyi Fauna from Xingyi, Guizhou, and its significance.

Geological Review 2016 (3) : 779-790 (in Chinese with English summary)

doi: 10.16509/j.georeview.2016.03.018




Triassic Xingyi Fauna, from the Zhuganpo Member, Falang Formation, Xingyi City, Guizhou Province, southwest China, is famous for high diversity well preserved marine reptiles. The geological age of this fauna has been controversial for a long time. In this study, we focus on the isotopic dating of Xingyi Fauna.