Ediacaran - Wikipedia
The Ediacaran Period (c. 635–538.8 Mya) represents the time from the end of global Marinoan glaciation to the first appearance worldwide of somewhat complicated trace fossils (Treptichnus pedum (Seilacher, 1955)).
Ediacaran Period | Definition, Biota, and Facts | Britannica
Ediacaran Period, the uppermost division of the Proterozoic Eon of Precambrian time, extending from approximately 635 million years ago to 541 million years ago. The Ediacaran Period produced some of the earliest known evidence of the evolution of …
震旦纪 - 百度百科
震旦纪（Sinian Period，距今约8亿年～距今约5.7亿年），又称 埃迪卡拉纪 （Ediacaran），或文德纪（Vendian）和 新元古代III （Neoproterozoic）（几个时期不完全重合），是元古宙最后的一段时期，一般指9亿年~6亿年前。
Ediacaran biota - Wikipedia
The Ediacaran (/ ˌ iː d i ˈ æ k ər ə n /; formerly Vendian) biota is a taxonomic period classification that consists of all life forms that were present on Earth during the Ediacaran Period (c. 635–538.8 Mya). These were enigmatic tubular and frond-shaped, mostly sessile, organisms.
埃迪卡拉纪 - 维基百科，自由的百科全书
埃迪卡拉纪 （英語： Ediacaran），又称 艾迪卡拉纪[3] 、 震旦纪 （英語： Sinian）、 文德纪 （英語： Vendian），是 元古宙 最後的一段时期，其後緊接著便是 顯生宙 的開端── 古生代 的 寒武紀。 埃迪卡拉纪一般指6.35-5.41億年前。 学者曾用这个名字指稱不同阶段，直到2004年5月13日， 國際地質科學聯盟 明確定義其年代，这是这个组织120年來首次對其加时期定义。 最古老的動物遺跡可追溯至十億年前，但最早的動物化石出現於 埃迪卡拉纪。 埃迪卡拉生物群因為 …
The Ediacaran Period - University of California Museum of …
The Ediacaran is the youngest period of three that make up the Neoproterozoic Era, which in turn is the youngest of three eras within the Proterozoic Eon. The Ediacaran is sandwiched between the older Cryogenian Period and the younger Cambrian Period.
The tempo of Ediacaran evolution | Science Advances - AAAS
2021年11月3日 · The Ediacaran Period [635 to 539 million years (Ma) ago] is a pivotal period in Earth history, archiving the rise of complex macroscopic life . This evolutionary milestone occurred in the aftermath of extreme climate perturbations, the Cryogenian snowball Earth events , and amid several perturbations to the carbon cycle.
Chronology of Ediacaran sedimentary and biogeochemical shifts …
2024年9月19日 · Starting with recovery from the last Cryogenian glaciation 1, the Ediacaran Period saw the initial radiation of macroscopic animals 2; oscillations in the redox state and chemistry of Earth’s ...
On the eve of animal radiation: phylogeny, ecology and evolution …
2009年1月1日 · The newly named Ediacaran Period (635–541 million years ago; Ma) [1] is the youngest geological time interval in the Precambrian. It follows the 635 Ma Marinoan snowball Earth event and precedes the Cambrian Period that is marked by the radiation of bilaterian animals, appearance of complex animal traces and dominance of biomineralizing animals.
Ediacaran life on land | Nature
2012年12月12日 · Ediacaran (635–542 million years ago) fossils have been regarded as early animal ancestors of the Cambrian evolutionary explosion of marine invertebrate phyla1, as giant marine...
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