All articles tagged with #kotlin crisis
Fossils from Inner Meadow, eastern Canada, dated to about 551 million years ago, indicate the Kotlin Crisis was far more severe and rapid than previously believed, with about 80% of known macroorganisms disappearing in a single pulse, as overlapping Avalon-type biotas suggest abrupt turnover possibly tied to declining ocean oxygen ahead of the Cambrian explosion.
New fossils from Inner Meadow in eastern Canada suggest Earth's earliest mass extinction, the Kotlin Crisis, about 550 million years ago, occurred abruptly and was far more deadly than previously thought, wiping out roughly 80% of large organisms. Evidence points to an oxygen-depleted ocean and environmental stressors, with exceptional Lagerstätten preservation helping to precisely date the event and prompting researchers to reassess the pace and causes of early ecosystem collapse.