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- Cambrian abstract "The Cambrian (/ˈkæmbriən/) 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. The period was established by Adam Sedgwick, who named it after Cambria, the Latin name for Wales, where Britain's Cambrian rocks are best exposed. The Cambrian is unique in its unusually high proportion of lagerstätten. These are sites of exceptional preservation, where 'soft' parts of organisms are preserved as well as their more resistant shells. This means that our understanding of the Cambrian biology surpasses that of some later periods.The Cambrian Period marked a profound change in life on Earth; prior to the Cambrian, living organisms on the whole were small, unicellular and simple. Complex, multicellular organisms gradually became more common in the millions of years immediately preceding the Cambrian, but it was not until this period that mineralized – hence readily fossilized – organisms became common. The rapid diversification of lifeforms in the Cambrian, known as the Cambrian explosion, produced the first representatives of many modern phyla, representing the evolutionary stems of modern groups of species, such as the molluscs and arthropods.[citation needed] While diverse life forms prospered in the oceans, the land was comparatively barren – with nothing more complex than a microbial soil crust and a few molluscs that emerged to browse on the microbial biofilm Most of the continents were probably dry and rocky due to a lack of vegetation. Shallow seas flanked the margins of several continents created during the breakup of the supercontinent Pannotia. The seas were relatively warm, and polar ice was absent for much of the period.The United States Federal Geographic Data Committee uses a "barred capital C" 〈Є〉 character similar to the capital letter Ukrainian Ye 〈Є〉 to represent the Cambrian Period.The proper Unicode character is U+A792 Ꞓ latin capital letter c with bar.".
- Cambrian thumbnail Blakey_500moll.jpg?width=300.
- Cambrian wikiPageExternalLink article251.html.
- Cambrian wikiPageExternalLink geobiology.asp.
- Cambrian wikiPageExternalLink kambrium.htm.
- Cambrian wikiPageExternalLink Ch19-Cambrian.pdf.
- Cambrian wikiPageExternalLink www.scotese.com.
- Cambrian wikiPageExternalLink gssp.htm.
- Cambrian wikiPageExternalLink www.trilobite.info.
- Cambrian wikiPageExternalLink biostratigraphy.htm.
- Cambrian wikiPageID "5367".
- Cambrian wikiPageRevisionID "606209592".
- Cambrian co "4500".
- Cambrian hasPhotoCollection Cambrian.
- Cambrian o "12.5".
- Cambrian seaLevel "5400.0".
- Cambrian temp "21".
- Cambrian timeline "off".
- Cambrian subject Category:Cambrian.
- Cambrian comment "The Cambrian (/ˈkæmbriən/) 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. The period was established by Adam Sedgwick, who named it after Cambria, the Latin name for Wales, where Britain's Cambrian rocks are best exposed. The Cambrian is unique in its unusually high proportion of lagerstätten.".
- Cambrian label "Cambrian".
- Cambrian label "Cambriano".
- Cambrian label "Cambriano".
- Cambrian label "Cambrien".
- Cambrian label "Cambrium".
- Cambrian label "Cámbrico".
- Cambrian label "Kambr".
- Cambrian label "Kambrium".
- Cambrian label "Кембрийский период".
- Cambrian label "عصر كمبري".
- Cambrian label "カンブリア紀".
- Cambrian label "寒武纪".
- Cambrian sameAs Kambrium.
- Cambrian sameAs Kambrium.
- Cambrian sameAs Κάμβρια_περίοδος.
- Cambrian sameAs Cámbrico.
- Cambrian sameAs Kanbriar.
- Cambrian sameAs Cambrien.
- Cambrian sameAs Kambrium.
- Cambrian sameAs Cambriano.
- Cambrian sameAs カンブリア紀.
- Cambrian sameAs 캄브리아기.
- Cambrian sameAs Cambrium.
- Cambrian sameAs Kambr.
- Cambrian sameAs Cambriano.
- Cambrian sameAs m.01mwk.
- Cambrian sameAs Mx4r4V5TlJ0lQdeQbeH_MOfZ_g.
- Cambrian sameAs Q79064.
- Cambrian sameAs Q79064.
- Cambrian wasDerivedFrom Cambrian?oldid=606209592.
- Cambrian depiction Blakey_500moll.jpg.
- Cambrian isPrimaryTopicOf Cambrian.
