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Calibrating the End-Permian Mass Extinction
TLDR
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. Expand
Stratigraphy and paleogeography of the Ediacaran Doushantuo Formation (ca. 635-551Ma) in South China
Abstract The Ediacaran Doushantuo Formation (ca. 635–551 Ma) in South China contains exceptionally well-preserved fossils of multicellular eukaryotes including early animals, and it is one of theExpand
Quantifying the process and abruptness of the end-Permian mass extinction
Abstract Studies of the end-Permian mass extinction have suggested a variety of patterns from a single catastrophic event to multiple phases. But most of these analyses have been based on fossilExpand
High-resolution Lopingian (Late Permian) timescale of South China
The Lopingian represents the last epoch of the Palaeozoic Era and is bracketed by two severe biotic mass extinctions associated with dramatic environmental changes. The Lopingian Epoch lasted about 7Expand
Timing and causes of mid-Holocene mammoth extinction on St. Paul Island, Alaska
TLDR
Evidence indicates that this mammoth population died out because of the synergistic effects of shrinking island area and freshwater scarcity caused by rising sea levels and regional climate change, reinforcing 21st-century concerns about the vulnerability of island populations to future warming, freshwater availability, and sea level rise. Expand
Biostratigraphy and lithofacies of the Permian System in the Laibin–Heshan area of Guangxi, South China
Abstract The Laibin–Heshan area is probably a unique area containing a suitable marine reference for the entire Permian system. Various fossils, sedimentary characteristics, lithofacies andExpand
The Global Boundary Stratotype Section and Point (GSSP) for the base of Changhsingian Stage (Upper Permian)
The Global Stratotype Section and Point (GSSP) for the base-Changhsingian Stage is defined at the First Appearance Datum (FAD) of the conodont Clarkina wangi within the lineage from C. longicuspidataExpand
Tectonic evolution of the Qiangtang Block, northern Tibet during the Late Cisuralian (Late Early Permian): Evidence from fusuline fossil records
Abstract The tectonic evolution of the Qiangtang Block in the Qinghai–Tibetan Plateau has been a controversial subject for a long time. In this paper, the discovery of new stratigraphic and fusulineExpand
Timing and size selectivity of the Guadalupian (Middle Permian) fusulinoidean extinction
A comprehensive, high resolution stratigraphic database of fusulinoidean foraminifers reveals that this group of protists suffered extreme losses during the Guadalupian extinction. Most species (88%)Expand
Iron isotope fractionation during skarn-type metallogeny: A case study of Xinqiao Cu–S–Fe–Au deposit in the Middle–Lower Yangtze valley
Abstract Fe isotope compositions of mineral separates and bulk samples from Xinqiao Cu–S–Fe–Au skarn type deposit were investigated. An overall variation in δ 57 Fe values from − 1.22‰ to + 0.73‰ hasExpand
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