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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]
Cambrian Period—541 to 485. 4 MYA - U. S. National Park Service In 1835 both Sedgwick and Murchison named the rocks they studied for ancient Welsh tribes: Sedgwick used “Cambrian” and Murchison used “Silurian ” Each worker attempted to recognize breaks in the stratigraphic record as boundaries for his subdivision
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 - 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
Cambrian Period: Facts Information - Live Science Scientists find some of the best specimens for the “evolutionary experiments” of the Cambrian Period in the fossil beds of the Sirius Passet formation in Greenland; Chenjiang, China; and the
Cambrian Period - Geology Page The Cambrian is the first geological period of the Paleozoic Era, lasting from 541 0 ± 1 0 to 485 4 ± 1 9 million years ago (mya) and is succeeded by the Ordovician Its subdivisions, and indeed its base, are somewhat in flux
Cambrian Period - Natural History Museum Marine animals with mineralized skeletons make their first appearance in the shallow seas of the Cambrian, though only "small shelly fossils" (tiny shells, spines and scales from early metazoans) and trace fossils are preserved for the first ten million years or so
Cambrian Period - Fossils, Rocks, Animals | Britannica 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
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