|
- 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 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
- 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: Facts Information - Live Science
The Cambrian Explosion was a dramatic burst of evolutionary changes in life on Earth During the Cambrian Period, which began about 540 million years, trilobites were the dominant species
- Cambrian Period - National Geographic
The 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 emerge, including many major
- 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 Period: Facts, Information, and Timeline - A-Z Animals
Scientists regard the Cambrian Period as the part of the Paleozoic Era that generated the most substantial evolutionary surge known to man The Cambian Period contrasts with the Precambrian period, primarily characterized by a slow progression in evolution
- Cambrian - Simple English Wikipedia, the free encyclopedia
The Cambrian is the first geological period of the Palaeozoic era and the Phanerozoic eon It lasted from 541 million years ago to 485 4 million years ago [1] Before it came the Ediacaran, and after it the Ordovician Biologists have learnt quite a lot about the soft parts of Cambrian animals
|
|
|