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Environmental Divers of Decoupled Marine Sulfate Oxygen and Sulfur Isotope Trends during the Toarcian Oceanic Anoxic Event
The Toarcian Oceanic Anoxic Event was a major carbon cycle perturbation associated with two pulses of extinction and widespread environmental change. Studies of the biogeochemical sulfur cycle provide insight into the ...
Atmosphere-ocean oxygen and productivity dynamics during the Cambrian explosion
Large, motile animals proliferated during the Cambrian explosion,540–515 million years ago,and this period has been associated with both rising and declining O2levels on Earth [1–3]. To explore this conundrum, we reconstructed ...
Evaluating Records of Environmental Change and Mass Extinctions during the Early Paleozoic
The interval between the Cambrian ‘explosion’ and the Great Ordovician Biodiversification Event (GOBE) is marred by biotic turmoil.Several mass extinction events have been recognized throughout the Cambrian,with ...