在新选项卡中打开链接
  1. Ediacaran and Vendian

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

    Ediacaran - Wikipedia

    • 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 Proterozoic Eon as well as the last of the so-called "Precambrian supereon", before the beginning of the subsequent Cambrian Period marks the start of … 展开

    Upper and lower boundaries

    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)). … 展开

    Subdivisions

    The Ediacaran Period is not yet formally subdivided, but a proposed scheme recognises an Upper Ediacaran whose base corresponds with the Gaskiers glaciation, a Terminal Ediacaran Stage starting around … 展开

    Absolute dating

    The dating of the rock type section of the Ediacaran Period in South Australia has proven uncertain due to lack of overlying igneous material. Therefore, the age range of 635 to 538.8 million years is based on correlations to … 展开

    Biota

    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 mos… 展开

    Astronomical factors

    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

    Documentaries

    A few English language documentaries have featured the Ediacaran Period and biota:
    • The Time Traveller's Guide To Australia (2012, ABC Science; Part 1 of 4).
    • The Geological Histo… 展开

     
  1. Ediacaran biota - Wikipedia

  2. 埃迪卡拉纪 - 维基百科,自由的百科全书

  3. 埃迪卡拉生物群 - 维基百科,自由的百科全书

    埃迪卡拉生物群 (英語: Ediacaran biota)又稱 艾迪卡拉生物群[1],是一群神秘的盤狀、管状、叶状或袋狀形态的 前寒武纪 生物,生活在 元古宙 末期的 埃迪卡拉紀 (5億8000萬年前~5億4200萬年前)。

  4. Ediacara Hills - Wikipedia

  5. 埃迪卡拉紀 - 維基百科,自由的百科全書 - zh.wikipedia.org

  6. Ediacaran - Simple English Wikipedia, the free …

    The Ediacaran period (about 635–541 million years BC), is named after the Ediacara Hills of South Australia. It is the last geological period of the Proterozoic eon. The Edicaran is followed by the Cambrian, the first period of the …

  7. 其他用户还问了以下问题
  8. The Ediacaran Period - University of California Museum of …

  9. Decoding the Ediacaran Enigma - Science | AAAS

    2004年8月20日 · The Ediacara biota remains one of the greatest enigmata within evolutionary paleobiology (figure, top). Discovered in 1946 by R. C. Sprigg in the Flinders Ranges of southern Australia, the Ediacara biota—which is 580 to …

  10. エディアカラン - Wikipedia

  11. 某些结果已被删除