cambrian period - EAS
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- https://www.nationalgeographic.com/science/article/cambrian
WebThe Cambrian period, part of the Paleozoic era, produced the most intense burst of evolution ever known. The Cambrian Explosion saw an incredible diversity of life …
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The Cambrian Period was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million years ago (mya) to the beginning of the Ordovician Period 485.4 mya. Its subdivisions, and its base, are somewhat in flux. The period was established as "Cambrian series" by Adam Sedgwick, wh…
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WebCambrian Period. Geologic time period 543-490 million years ago. The Cambrian is the first period of the Paleozoic era, during which all animals and plants lived in the Earth’s …
- https://www.nps.gov/articles/000/cambrian-period.htm
WebThe Cambrian Period marks an important point in the history of life on Earth; it is the time when many kinds of invertebrates and the first vertebrates—fishes—appeared …
- https://a-z-animals.com/blog/cambrian-period-facts-information-and-timeline
WebNov 13, 2022 · While some scientists contend that the total of the Cambrian Period was sixty million years, other estimates say it was between 53 and 55 million years. These …

