Permian–Triassic extinction event - Wikipedia
Approximately 251.9 million years ago, the Permian–Triassic (P–T, P–Tr) extinction event (PTME; also known as the Late Permian extinction event, [3] the Latest Permian extinction event, [4] the End-Permian extinction event, [5] [6] and colloquially as the Great Dying) [7] [8] forms the boundary between the Permian and Triassic geologic ...
Environmental crises at the Permian–Triassic mass extinction
2022年2月22日 · The Permian–Triassic mass extinction (PTME; 252 million years ago (Ma)) was the most severe biological crisis of the Phanerozoic (Fig. 1). It almost completely eliminated Palaeozoic...
Permian extinction | Overview & Facts | Britannica
2024年11月8日 · Permian extinction, a series of extinction pulses that contributed to the greatest mass extinction in Earth’s history. Many geologists and paleontologists contend that the Permian extinction occurred over the course of 15 million years during the latter part of the Permian Period (299 million to 252 million years ago).
Evidence for a prolonged Permian–Triassic extinction ... - Nature
2019年4月5日 · The latest Permian mass extinction, the most devastating biocrisis of the Phanerozoic, has been widely attributed to eruptions of the Siberian Traps Large Igneous Province, although evidence of...
Permian extinction, facts and information - National Geographic
Learn about the greatest mass extinction in Earth's history, which occurred at the end of the Permian period about 250 million years ago. Find out how scientists are trying to identify the...
Did an Impact Trigger the Permian-Triassic Extinction?
2004年5月17日 · New evidence suggests a possible impact cause for the greatest mass extinction of all time, although many scientists remain skeptical that this long-standing mystery has been solved. A NASA news conference was held May 13 to announce the discovery of an impact crater near Australia that might be implicated in the Permian-Triassic or PT ...
The Greatest Mass Extinction: A Bang or a Whimper?
The PT extinction 252 million years ago was the greatest mass extinction in Earth's history, wiping out most species on land and sea. Learn about the evidence for and against an impact, volcanic, or climate explanation, and the fossil record of the extinction event.
The Great Permian-Triassic Extinction - ThoughtCo
2017年3月17日 · The greatest mass extinction of the last 500 million years or Phanerozoic Eon happened 250 million years ago, ending the Permian Period and beginning the Triassic Period. More than nine-tenths of all species disappeared, far exceeding the toll of the later, more familiar Cretaceous-Tertiary extinction.
Hyperthermal-driven mass extinctions: killing models during the …
2018年9月3日 · Mass extinctions have been much discussed since 1980, and most attention has focused on the ultimate drivers of the physical environmental crisis rather than the proximate killers of life. The earlier tension between impact and volcanism models has simplified, with a realization that asteroid impact might have been a prime driver only of the ...
Rarity in mass extinctions and the future of ecosystems | Nature
2015年12月16日 · The three mass extinction events with the best geochronologic constraints on their duration (PT, TJ and KPg) all occurred on time scales on the order of 10 3 –10 4 years 18,113,114,115.