Ediacaran
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English
Etymology
Ediacara + -an. After the Ediacara Hills in South Australia; from an Australian Aboriginal term (details disputed). See 
Ediacara Hills on Wikipedia.Wikipedia
Pronunciation
Adjective
Ediacaran (not comparable)
- (geology) Of a geologic period within the Neoproterozoic era from about 620 to 542 million years ago.
- 1992, Richard J. F. Jenkinsm, “Chapter 5: Functional and Ecological Aspects of Ediacaran Assemblages”, in Jere H. Lipps, Philip W. Signor, editors, Origin and Early Evolution of the Metazoa, page 133:
- The widespread discoveries of fossil remains of Ediacaran aspect have generated continued excitement in respect of their possible evolutionary significance, and in terms of recent surrealistic interpretations of their morphology and inferred interrelationships (Pflug, 1970a,b, 1972a,b; Fedonkin, 1985 a,b; Gould, 1984, 1985; Seilacher, 1984, 1985, 1989; McMenamin, 1986; and Bergstrom, 1989, 1990), a reexamination of the actual fossil material is timely.
- 2007, Clarence A. Hall, Jr., Introduction to the Geology of Southern California and Its Native Plants, page 83:
- Swartpuntia (frondlike metazoans) and Ernietta (ribbed saclike metazoans) are part of the Ediacaran fauna.
- 2011, Matt Cartmill, Fred H. Smith, The Human Lineage, page 18:
- Then in 1946, fossils of multicellular organisms were recovered from Vendian deposits around 570My old at the Ediacara copper mine in South Australia. Since then, geologists have found similar Ediacaran faunas in Precambrian rocks from other parts of the world as well.
- 2019 September 4, Helen Sullivan, “Behold Mortichnia, the Death Trail of an Ancient Worm”, in The New York Times, →ISSN, →OCLC, archived from the original on 2019-09-04, Science:
- The creature, Yilingia spiciformis — named after the Yiling district in which it was discovered — was a complicated one by the standards of the Ediacaran Period: mobile, segmented, trilobate (each body segment composed of three lobes) and bilaterally symmetrical.
- 2022 November 22, Donna Lu, “The real paleo diet: researchers find traces of world’s oldest meal in 550m-year-old fossil”, in The Guardian:
- Scientists who have analysed ancient fossils of Ediacaran biota – life forms that existed between 538.8m and 635m years ago – say they represent the earliest evidence of food consumed by animals.
Translations
of a geologic period from about 620 to 542 million years ago
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Proper noun
Ediacaran
- (geology) The Ediacaran period.
- 2012, Ivan R. Schwab, Richard R. Dubielzig, Charles Schobert, Evolution's Witness: How Eyes Evolved, page 25:
- Metazoan life was in full swing by the early phases of the Ediacaran, approximately 650 million years ago, but these first steps were small aggregations of cells with little more than eyespots or early cups of pigment lined with photoreceptive cells.
Translations
Ediacaran period
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Noun
Ediacaran (plural Ediacarans)
- An organism that lived in the Ediacaran period.
- 2016, Peter Godfrey-Smith, Other Minds, William Collins, published 2018, page 30:
- Many Ediacarans seem to have lived quiet lives of very limited mobility on the bottom of the sea.