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Sinsk Event

All articles tagged with #sinsk event

science2 months ago•31 min saved

Huayuan soft-bodied Cambrian biota reveals a diverse deep-sea ecosystem after the first Phanerozoic mass extinction

The Huayuan biota, a lower Cambrian Burgess Shale–type Lagerstätte from the Yangtze Block in South China, preserves 153 animal species across 16 phyla—51% or more new—mostly soft-bodied with preserved cellular tissues, including radiodonts and pelagic tunicates. This high-diversity, deep-water assemblage, dated shortly after the Sinsk event, links to Burgess Shale faunas via transoceanic dispersal and illuminates Cambrian ecosystem transitions between Ages 3 and 4 and the differential impacts of the first Phanerozoic mass extinction in shallow versus deep settings.

via Nature|

#burgess-shale-type #cambrian #huayuan-biota

science2 years ago•1 min saved

"Massive Extinction 500 Million Years Ago Linked to Tectonic Plates"

The Sinsk event, a massive extinction 500 million years ago, coincided with the Cambrian period's burst of life and was caused by tectonic plate activity, leading to the extinction of major groups of sea creatures, including hyoliths and archaeocyathids that had diversified into hundreds of species and created the first reefs.

via Interesting Engineering|

#archaeocyathids #cambrian-period #extinction

science2 years ago•3 min saved

Tectonic Plate Shifts Linked to Ancient Mass Die-Off

New research suggests that a major extinction event 513 million years ago, known as the Sinsk event, was triggered by tectonic activity around the supercontinent Gondwana, causing the drowning of ancient reefs and altering the oceans. The study, led by sedimentologist Paul Myrow, found links between rock layers in Antarctica and Australia, indicating similar geological dynamics at the time of the extinction. The uplift of mountains and the release of greenhouse gases from large igneous provinces led to a decrease in ocean circulation, resulting in the death of many organisms. This sheds light on the role of tectonics in driving mass die-offs and provides insights into potential parallels with modern climate change.

via Livescience.com|

#gondwana #mass-extinction #science