Precambrian
Query URLs
https://term.museum-digital.de/md-de/tag/20363
- Note
- The Precambrian (or Pre-Cambrian, sometimes abbreviated pꞒ, or Cryptozoic) is the earliest part of Earth´s history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the Phanerozoic Eon, which is named after Cambria, the Latinised name for Wales, where rocks from this age were first studied. The Precambrian accounts for 88% of the Earth´s geologic time.
The Precambrian is an informal unit of geologic time, subdivided into three eons (Hadean, Archean, Proterozoic) of the geologic time scale. It spans from the formation of Earth about 4.6 billion years ago (Ga) to the beginning of the Cambrian Period, about 538.8 million years ago (Ma), when hard-shelled creatures first appeared in abundance.
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Pyterlit
Pyterlit ist ein...
Object information
Image: Sammlungen der Universität Mainz - CC BY-NC-SA -
Dunkler, gefalteter Tonschiefer
Tonschiefer entstehen im...
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Image: Sammlungen der Universität Mainz - CC BY-NC-SA -
Chromdiopsid
Der Chromdiopsid ist ein...
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Image: Sammlungen der Universität Mainz - CC BY-NC-SA
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