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    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)). Although the Ediacaran Period does contain soft-bodied fossils, it is unusual in comparison to later … 展开

    The Ediacaran is a geological period of the Neoproterozoic Era that spans 96 million years from the end of the Cryogenian Period at 635 Mya to the beginning of the Cambrian Period at 538.8 Mya. It is the last period of the 展开

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    The dating of the rock type section of the Ediacaran Period in South Australia has proven uncertain due to lack of overlying igneous material. … 展开

    The relative proximity of the Moon at this time meant that tides were stronger and more rapid than they are now. The day was 21.9 ± 0.4 hours, and there were 13.1 ± 0.1 synodic months/year and 400 ± 7 solar days/year. 展开

    A few English language documentaries have featured the Ediacaran Period and biota:
    • The Time Traveller's Guide To Australia (2012, ABC … 展开

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    The Ediacaran Period overlaps but is shorter than the Vendian Period (650 to 543 million years ago), a name that was earlier, in 1952, proposed … 展开

    The Ediacaran Period is not yet formally subdivided, but a proposed scheme recognises an Upper Ediacaran whose base corresponds with the 展开

    The fossil record from the Ediacaran Period is sparse, as more easily fossilized hard-shelled animals had yet to evolve. The Ediacaran biota include the oldest definite multicellular organisms (with specialized tissues), the most common types of which resemble … 展开

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  2. Ediacaran Period | Definition, Biota, and Facts | Britannica

    2016年11月8日 · Ediacaran Period, uppermost division of the Proterozoic Eon of Precambrian time and latest of the three periods of the Neoproterozoic Era, …

  3. The tempo of Ediacaran evolution | Science Advances

    2021年11月3日 · The rise of complex macroscopic life occurred during the Ediacaran Period, an interval that witnessed large-scale disturbances to biogeochemical systems. The current Ediacaran chronostratigraphic …

  4. Ediacaran biota - Wikipedia

  5. The Ediacaran Period - University of California Museum of …

  6. The Avalon Explosion: Evolution of Ediacara …

    2008年1月4日 · Ediacara fossils [575 to 542 million years ago (Ma)] represent Earth's oldest known complex macroscopic life forms, but their morphological history is poorly understood. A comprehensive quantitative analysis of these …

  7. Chronology of Ediacaran sedimentary and biogeochemical shifts …

  8. Ediacaran - an overview | ScienceDirect Topics

  9. Ancient steroids establish the Ediacaran fossil - Science …

    2018年9月21日 · Ediacaran macrofossils are as “strange as life on another planet” and have evaded taxonomic classification, with interpretations ranging from marine animals or giant single-celled protists to terrestrial lichens. Here, …

  10. The advent of animals: The view from the Ediacaran | PNAS

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