- 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]
- Cambrian Period | Definition, Plants, Animals | Britannica
Cambrian Period, earliest time division of the Paleozoic Era, extending from 538 8 million to 485 4 million years ago
- 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
- Cambrian - New World Encyclopedia
The Cambrian period is divided into three epochs: The Early Cambrian (also Lower Cambrian, Caerfai, or Waucoban), the Middle Cambrian (St Davids or Albertian), and the Late Cambrian or Furongian (also Upper Cambrian, Merioneth, or Croixan)
- Cambrian Period - National Geographic
Learn more about a time period marked by an intense burst of evolution The Cambrian period, part of the Paleozoic era, produced the most intense burst of evolution ever known The Cambrian
- Cambrian - Wikipedia, the free encyclopedia
The rapid diversification of lifeforms in the Cambrian, known as the Cambrian explosion, produced the first representatives of all modern animal phyla
- Cambrian Period: Facts, Information, and Timeline - A-Z Animals
Often referred to as the biological big bang, the Cambrian explosion allowed life on earth to evolve from single-celled organisms to several new kingdoms and phyla Many geologic and climatic events also occurred during this period The Cambrian Period lasted for over 55 million years
- Cambrian Period - Fossils, Rocks, Animals | Britannica
Cambrian Period - Fossils, Rocks, Animals: Cambrian rocks have a special biological significance, because they are the earliest to contain diverse fossils of animals These rocks also include the first appearances of most animal phyla that have fossil records
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