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Ediacaran

British  
/ ˌiːdiːˈækərən /

adjective

  1. of, denoting, or formed in the last 50 million years of the Neoproterozoic era, during which a new texturally and chemically distinctive carbonate layer appeared, indicating climatic change

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. the Ediacaran period or rock system

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Ediacaran Scientific  
/ ē′dē-äkə-rən /
  1. Relating to a group of fossilized organisms that are the earliest known remains of multicellular life. They are soft-bodied marine life forms that date from between 560 and 545 million years ago, during the late Precambrian Eon.


Etymology

Origin of Ediacaran

C20: named after the Ediacara Hills in the Flinders mountain range in South Australia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

These durable elements fossilize well and appear in rocks dating back about 543 million years to the late Ediacaran Period.

From Science Daily

The rocks dated to the Ediacaran Period, which lasted from about 635 million to 541 million years ago, just before the Cambrian Period when complex multicellular life rapidly diversified.

From Science Daily

As in their previous investigations, the researchers examined Ediacaran age rocks collected from drill cores and outcrops in Oman, western India, and Siberia.

From Science Daily

So far, the samples indicate that these sponges lived during the Ediacaran Period.

From Science Daily

Yet roughly 570 million years ago, during a chapter of Earth history known as the Ediacaran period, something remarkable happened.

From Science Daily