Paleozoic - Wikipedia
网页The Paleozoic (/ ˌpæli.əˈzoʊ.ɪk, - i.oʊ -, ˌpeɪ -/ PAL-ee-ə-ZOH-ik, -ee-oh-, PAY-; [1] or Palaeozoic) Era is the first of three geological eras of the Phanerozoic Eon. Beginning 538.8 million years ago (Ma), it succeeds the Neoproterozoic (the last era of the Proterozoic Eon) and ends 251.9 Ma at the start of the Mesozoic Era. [2] .
Paleozoic Era | Description, Climate, & Facts | Britannica
网页2024年8月9日 · Paleozoic Era, major interval of geologic time that began 538.8 million years ago with the Cambrian explosion, an extraordinary diversification of marine animals, and ended about 252 million years ago with the end-Permian extinction, the greatest extinction event in Earth history. The major.
Paleozoic Era summary | Britannica
网页Paleozoic Era, or Palaeozoic Era, Major interval of geologic time, c. 542–251 million years ago. From the Greek for “ancient life,” it is the first era of the Phanerozoic Eon and is followed by the Mesozoic Era .
Paleozoic Era: Facts & Information - Live Science
网页2013年6月20日 · The Paleozoic Era, which ran from 541 million to 251.9 million years ago, was a time of great change on Earth. The era began with the breakup of one supercontinent and the formation of another....
Palaeozoic landscapes shaped by plant evolution - Nature
网页2012年2月1日 · The Palaeozoic 'greening' of terrestrial landscapes heralded a fundamental and irreversible change in sedimentation patterns, one of the most remarkable in the planet's history, and...
Onset and ending of the late Palaeozoic ice age triggered by ...
网页2017年4月10日 · The late Palaeozoic ice age (LPIA) started around 340–330 million years ago (Ma) 1. It is one of the most prominent glacial events in Earth’s history, now seen as a dynamic succession of ice...
Palaeozoic tectonics and evolutionary history of the Qinling …
网页2011年2月1日 · The melange in the Shangdan zone is predominantly composed of ultramafic and mafic rocks that can be divided into three geochemical groups: (1) N- MORB type; (2) E-MORB type; and (3) island-arc/active continental margin-related basalts.
Palaeozoic cooling modulated by ophiolite weathering through …
网页2023年11月30日 · Here we provide a framework that explains the tectonic forces behind Palaeozoic glaciations through increased organic carbon burial caused by the weathering of mafic and ultramafic lithologies in...
Paleozoic Era - Encyclopedia.com
网页2018年6月11日 · The Paleozoic Era spans six geologic time periods including the Cambrian Period (544 to 500 mya); Ordovician Period (500 mya to 440 mya); Silurian (440 mya to 410 mya); Devonian (410 mya to 360 mya); and the Carboniferous Period (360 mya to 286 mya) (in many modern geological texts, especially those …
Periods of the Paleozoic Era - ThoughtCo
网页2019年5月23日 · The Paleozoic Era begins after the Pre-Cambrian about 297 million years ago and ends with the start of the Mesozoic period about 250 million years ago. Each major era on the Geologic Time Scale has been further broken down into periods that are defined by the type of life that evolved during that span of time.