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- Cambrian - Wikipedia
The Cambrian ( ˈkæmbri ən, ˈkeɪm - KAM-bree-ən, KAYM-) is the first geological period of the Paleozoic Era and the Phanerozoic Eon [5] The Cambrian lasted 51 95 million years from the end of the preceding Ediacaran period 538 8 Ma (million years ago) to the beginning of the Ordovician Period 486 85 Ma [1] Most of the continents were located in the southern hemisphere surrounded by
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- Cambrian Period | Definition, Plants, Animals | Britannica
Cambrian Period, earliest time division of the Paleozoic Era and Phanerozoic Eon, lasting from 538 8 million to 485 4 million years ago The Cambrian System, named by English geologist Adam Sedgwick for slaty rocks in southern Wales and southwestern England, contains the earliest record of abundant and varied life-forms
- The Cambrian Period: How animals exploded onto the scene
The Cambrian Period has typically been thought of as the defining moment in the diversification of large, multicellular lifeforms, including animals However, new discoveries are shifting our understanding of how and when animals first appeared, pushing their roots further back in time
- Cambrian Period—541 to 485. 4 MYA - U. S. National Park Service
The 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 in the fossil record The Burgess Shale contains the best record of Cambrian animal fossils including soft-bodied forms
- Cambrian Period: When Life Learned to Experiment - FossilEra
Discover the Cambrian Period through its fossils—trilobites, early predators, and the evolutionary experiments that shaped life on Earth
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- The Cambrian Period
: : The Cambrian Period The Cambrian Period marks an important point in the history of life on Earth; it is the time when most of the major groups of animals first appear in the fossil record This event is sometimes called the "Cambrian Explosion," because of the relatively short time over which this diversity of forms appears
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