Thermal and nutrient stress drove Permian-Triassic shallow marine extinctions.

ABSTRACT: The Permian-Triassic climate crisis can provide key insights into the potential impact of horizon threats to modern-day biodiversity. This crisis coincides with the same extensive environmental changes that threaten modern marine ecosystems (i.e., thermal stress, deoxygenation and ocean acidification), but the primary drivers of extinction are currently unknown. To understand which factors caused extinctions, we conducted a data analysis to quantify the relationship (anomalies, state-shifts and trends) between geochemical proxies and the fossil record at the most intensively studied locality for this event, the Meishan section, China. We found that δ¹⁸O_apatite (paleotemperature proxy) and δ^114/110Cd (primary productivity proxy) best explain changes in speci

SUBMITTER: Foster WJ 

PROVIDER: S-EPMC11895742 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature