The well-established faunal turnover event between the Paleozoic fauna (e.g., brachiopods, crinoids) and the Modern fauna (e.g., clams, snails, urchins) coincided with intense global climate change of the latest Permian.
We hypothesize that physiological differences in species vulnerability to temperature-dependent hypoxia explains this ecological transition. We test this hypothesis by performing physiological experiments on different taxonomic groups, dramatically increasing the amount of physiological data available for understudied but ecologically significant marine taxa. Simulations of extinction patterns guided by these traits show that ocean warming and deoxygenation together caused the taxonomic selectivity of the end-Permian mass extinction and resulting permanent shift in marine ecosystem composition…
Source: Proceedings of the National Academy of Sciences (PNAS) | Earth, Atmospheric and Planetary Sciences
Proceedings of the National Academy of Sciences (PNAS)
Topics: Earth, Atmospheric and Planetary Sciences- Disentangling dissociative and nondissociative reaction dynamics in molecular mutual neutralization reactions between CO+ and O−
- Regional variability but global flux balance in the deep sulfur cycle
- Differences in physiological tolerance to global warming caused the Permian–Triassic transition between the Paleozoic and Modern faunas
- Asymmetric and intermittent supershear rupture mediated by local fault complexity during the 2025 MW 7.7 Myanmar earthquake
- Fracture-driven weakening amplifies projected ice loss from West Antarctica
- Small but mighty: The outsized role of small water bodies in the global carbon cycle
- Mathematical misdefinition of adjusted cloud-fraction change limits isolation of aerosol effects
- Reply to Yu et al.: Meteorological covariations do not reproduce diurnal cloud fraction response to aerosol
- Measurement of isotope fractionation associated with crystal nucleation: Implications for biocrystallization studies
- The emergence of human influence on the ozone layer by the 1960s
