Charles M. Henderson

TL;DR: High-precision geochronologic dating constrains probable causes of Earth's largest mass extinction and reveals that the extinction peak occurred just before 252.28 ± 0.08 million years ago, after a decline of 2 per mil (‰) in δ13C over 90,000 years, and coincided with a δ 13C excursion that is estimated to have lasted ≤20,000 Years.

TL;DR: The supercontinent Pangea completes its assembly and moves north during the Permian. The 47-million-year-long period is characterized by icehouse to greenhouse climate transition, major evaporites, changes in internal and external carbonate invertebrate skeletons, major diversification of fusulinacean foraminifers, ammonoids, bryozoans and brachiopods as discussed by the authors.

TL;DR: In this article, the authors report total organic carbon (TOC) concentrations and organic carbon accumulation rates (OCAR) for 40 Permian-Triassic boundary (PTB) sections with a near-global distribution and consider their implications for changes in marine productivity during the boundary crisis.

TL;DR: In this article, an environmentally controlled model for their distribution, in which wave aeration, enhanced by frequent storms, gave rise to an optimal zone for benthic colonization, within which extinction pressures were ameliorated and postextinction recovery duration was minimized.

TL;DR: In this article, the boundary between the Capitanian and Wuchiapingian stages is defined at the First Appearance Datum (FAD) of the conodont Clarkina postbitteri hongshuiensis at the base of Bed 6k in the Penglaitan Section along the Hongshui River in Guangxi Province, South China.