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The Cambrian Period Almost every metazoan phylum with hard parts, and many that lack hard parts, made its first appearance in the Cambrian The only modern phylum with an adequate fossil record to appear after the Cambrian was the phylum Bryozoa, which is not known before the early Ordovician
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 - 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 Period: Facts Information - Paleontology World 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 Burgess Shale of British Columbia
Cambrian - Wikiwand 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 Definition Meaning - Merriam-Webster : of, relating to, or being the earliest period of the Paleozoic era of geological history or the corresponding system of rocks marked by fossils of nearly every major invertebrate animal group see geologic time Love words? Need even more definitions?
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 | 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