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Examples
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Methane release on the scale that happened at the end of the Permian-Triassic period would eliminate all human life, and most of the rest of species on land or in the sea.
Matthew Yglesias » Arctic Seabed Methane Stores Destabilizing 2010
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The Permian-Triassic boundary is marked by the sudden disappearance of 95 percent of species.
The Anthropocene 2010
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For example, the Permian-Triassic boundary can be found in sediments that are 251 million years old, and it marks the sudden disappearance in the fossil record of 95 percent of the planet's species.
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There are scientists actively trying to persuade their peers that this isn't just an esoteric notion, the stuff of environmental conferences, but a stratigraphic fact, a real geological divider every bit as real as the Permian-Triassic boundary or anything else in the record.
The Anthropocene 2010
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Over the next six hours, they viewed the Permian-Triassic extinction, the Late Devonian extinction, and the Ordovician-Silurian extinction.
365 tomorrows » 2008 » March : A New Free Flash Fiction SciFi Story Every Day 2008
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There are scientists actively trying to persuade their peers that the Anthropocene is a stratigraphic fact, as real as the Permian-Triassic boundary.
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It consists of Permian-Triassic sediments, capped by Jurassic dolerite, and generally occurs above about 600 m, except in the east.
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On its eastern margin in Mount Cook National Park, the schist gradually changes back into Permian-Triassic greywacke of a separate terrain.
Te Wahipounamu (South-West New Zealand World Heritage Area), New Zealand 2008
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The Permian-Triassic extinction is the largest recorded, more disastrous for life forms than the extinction that killed the dinosaurs.
Science 2006
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I'm talking extinction events like the Permian-Triassic, romantically known as the "Great Dying", a climate change nightmare to end all nightmares.
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