Marine late Triassic-Jurassic carbon-isotope excursion and biological extinction records: New evidence from the Qiangtang Basin, Eastern Tethys: Comment and reply

摘要

This is a comment on the Triassic and Jurassic boundary from the Qiangtang region, northern Tibet, reported by Hu et al., 2020, as there is no convincing evidence to support the identification of the boundary in the section, either by stratigraphy or by fossils presented in the paper.