The Ediacaran (/ ˌiːdiˈækərən /; 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).

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 …

The term 'Ediacara biota'/'Ediacaran biota' has been widely used to describe those soft-bodied, macroscopic fossils in the key localities of the White Sea (Russia), South Australia, Namibia, and Newfoundland.

Ediacara fauna, unique assemblage of soft-bodied organisms preserved worldwide as fossil impressions in sandstone from the Ediacaran Period (approximately 635 million to 541 million years ago). Some scientists have suggested that the Ediacara fauna were the first metazoans.

2019年10月7日 · The study centers around the Ediacara biota, a term that refers to a collection of complex, multicellular eukaryotic organisms that lived on the Earth during the Ediacaran period (635 to 541 million years ago (Ma)), which was the final period of the Proterozoic eon.

However, in the latest Proterozoic — a time period now called the Ediacaran, or the Vendian, and lasting from about 635 to 542 million years ago* — macroscopic fossils of soft-bodied organisms can be found in a few localities around the world, confirming Darwin's expectations.

2016年10月6日 · A Yale-led research team found that the Ediacara Biota, a collection of marine fossils found in sandstone around the world, record the operation of an unusual mechanism that preserved impressions of the creatures’ soft bodies for hundreds of millions of years.

The Ediacaran biota include the oldest definite multicellular organisms (with specialized tissues), the most common types of which resemble segmented worms, fronds, disks, or immobile bags. Auroralumina was a cnidarian .

2022年11月27日 · The Ediacaran biota were soft-bodied organisms, many with enigmatic phylogenetic placement and ecology, living in marine environments between 574 and 539 million years ago.

Fossils of the Ediacaran biota preserve a record of large (up to 2 metres), biologically complex, mostly soft-bodied organisms, and are most commonly found as impressions of their external surfaces. The study of Ediacaran fossils has had a relatively brief history.