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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]
Cambria Hotel Chicago Loop: Steps from The Chicago Theatre Indulge in modern elegance and unmatched comfort at our charming hotel in Chicago Loop, boasting spacious accommodations and exceptional amenities Whether you're here for business or pleasure, our hotel offers an excellent location among some of Chicago's most popular attractions and neighborhoods
Cambrian System - ILSTRAT Cambrian strata in Illinois are dominantly sandstone, which is generally white but locally is stained or mottled red or yellow The sand is subangular to well rounded, poorly to well sorted, and predominantly medium grained, although it varies from fine to coarse grained and some beds contain small quartz pebbles
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 - 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 - 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 Period summary | Britannica Cambrian Period, Oldest time division of the Paleozoic Era During the Cambrian, 541–485 4 million years ago, there were widespread seas and several scattered landmasses The largest continent was Gondwana The average climate was probably warmer than today, with less variation between regions
Welcome - The Welsh Cambrian Society of Chicago Over time Cambrian has assumed a more cultural role as it strives to preserve a Welsh identity within the city Our regular events include: It is one of the oldest ethnic societies in the city Croeso! (Welcome!)
Hydrogeology of the Cambrian-Ordovician aquifer system in the northern . . . Cambrian and Ordovician age rocks, mainly marine sandstone and carbonate rocks, compose much of the sedimentary sequence and form the Cambrian-Ordovician aquifer system The aquifer system lies on the Precambrian basement, regarded as a regional confining unit