Permian - Wikipedia
The Permian (/ ˈ p ɜːr m i. ə n / PUR-mee-ən) [4] is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period 298.9 million years ago (Mya), to the beginning of the Triassic Period 251.902 Mya.
Permian Period | Plants, Animals, Extinction, & Facts ...
6 天之前 · Permian Period, in geologic time, the last period of the Paleozoic Era. The Permian Period began 298.9 million years ago and ended 252.2 million years ago, extending from the close of the Carboniferous Period to the outset of the Triassic Period.
Permian Period and Extinction | National Geographic
2017年1月23日 · The Permian period, which ended in the largest mass extinction the Earth has ever known, began about 299 million years ago. The emerging supercontinent of Pangaea presented severe...
Permian Period - Geology, Extinction, Climate | Britannica
6 天之前 · Permian Period - Geology, Extinction, Climate: The Permian Period is subdivided into Early (Cisuralian), Middle (Guadalupian), and Late (Lopingian) epochs corresponding to the Cisuralian, Guadalupian, and Lopingian rock series.
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).
Permian extinction, facts and information - National Geographic
About 250 million years ago, at the end of the Permian period, something killed some 90 percent of the planet's species. Less than 5 percent of the animal species in the seas survived. On...
Permian Period—298.9 to 251.9 MYA - U.S. National Park Service
2023年4月28日 · During the Permian Period, all the world’s landmasses were joined into a single continent that spread from pole to pole. Pangaea was shaped like a huge letter “C” facing eastward. The open part of the letter cupped the Tethys Ocean.