Oxygenation, life, and the planetary system during Earth's middle history: An overview
The long history of life on Earth has unfolded as a cause-and-effect relationship with the
evolving amount of oxygen (O2) in the oceans and atmosphere. Oxygen deficiency …
evolving amount of oxygen (O2) in the oceans and atmosphere. Oxygen deficiency …
Recurrent photic zone euxinia limited ocean oxygenation and animal evolution during the Ediacaran
Abstract The Ediacaran Period (~ 635–539 Ma) is marked by the emergence and
diversification of complex metazoans linked to ocean redox changes, but the processes and …
diversification of complex metazoans linked to ocean redox changes, but the processes and …
Rapid marine oxygen variability: Driver of the Late Ordovician mass extinction
The timing and connections between global cooling, marine redox conditions, and biotic
turnover are underconstrained for the Late Ordovician. The second most severe mass …
turnover are underconstrained for the Late Ordovician. The second most severe mass …
Progressive marine oxygenation and climatic cooling at the height of the Great Ordovician Biodiversification Event
The oxygen content of ancient seawater has been hypothesized to be a major controlling
factor for biodiversity throughout Earth's history. The Great Ordovician Biodiversification …
factor for biodiversity throughout Earth's history. The Great Ordovician Biodiversification …
Beyond anoxia: Exploring sedimentary thallium isotopes in paleo-redox reconstructions from a new core top collection
The thallium isotopic composition (ε 205 Tl) of seawater has been identified as a promising
proxy for global oceanic redox conditions due to its close association with Mn oxide burial …
proxy for global oceanic redox conditions due to its close association with Mn oxide burial …
Nitrogen isotopic compositions of organic-rich shales (∼ 560 Ma) in the Chengkou region, South China: Implications for a stable and relatively large nitrate reservoir …
J Wu, W Jia - Journal of Asian Earth Sciences, 2024 - Elsevier
The late Ediacaran period is a critical transitional period in Earth's history, marked by the
evolution of the Ediacara biota (∼ 574 to 538.8 Ma). The marine redox state and nutrient …
evolution of the Ediacara biota (∼ 574 to 538.8 Ma). The marine redox state and nutrient …
Protracted oxygenation across the Cambrian–Ordovician transition: A key initiator of the Great Ordovician Biodiversification Event?
Fluctuations in marine oxygen concentrations have been invoked as a primary driver for
changes in biodiversity throughout Earth history. Expansions in reducing marine conditions …
changes in biodiversity throughout Earth history. Expansions in reducing marine conditions …
Coupled vanadium and thallium isotope constraints on Mesoproterozoic ocean oxygenation around 1.38-1.39 Ga
The oxygenation state of the Mid-Proterozoic (1.8–0.8 Ga) ocean and atmosphere is heavily
debated and has implications for the relationship between environmental O 2 and the …
debated and has implications for the relationship between environmental O 2 and the …
Oxygen increase and the pacing of early animal evolution
K Kaiho, A Shizuya, M Kikuchi, T Komiya… - Global and Planetary …, 2024 - Elsevier
While it is widely accepted that early animals originated and primarily evolved during the
Neoproterozoic to Cambrian period, there remains ongoing debate over how fluctuations in …
Neoproterozoic to Cambrian period, there remains ongoing debate over how fluctuations in …
Widespread seafloor anoxia during generation of the Ediacaran Shuram carbon isotope excursion
Reconstructing the oxygenation history of Earth's oceans during the Ediacaran period (635
to 539 million years ago) has been challenging, and this has led to a polarizing debate …
to 539 million years ago) has been challenging, and this has led to a polarizing debate …