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| | The Cambrian was named by the geologist [[Adam Sedgwick]] for Cambria,<ref>http://www.ucmp.berkeley.edu/history/sedgwick.html</ref> Latin for [[Wales]], which has large areas of rock originating in, and characteristic of, the period. | | The Cambrian was named by the geologist [[Adam Sedgwick]] for Cambria,<ref>http://www.ucmp.berkeley.edu/history/sedgwick.html</ref> Latin for [[Wales]], which has large areas of rock originating in, and characteristic of, the period. |
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| − | Under the uniformitarian dates assigned by secular geologists, it represents approximately the period of Earth's history from about 542 million years ago to 488 million years ago.<ref>Gradstein, F.M., and Ogg, J.G.,[http://www.stratigraphy.org/scale04.pdf Geologic Time Scale 2004 – Why, How, and Where Next!]</ref> Young Earth creationists reject the uniformitarian assumptions behind the dates derived by secular geologists, so they reject these dates (see [[geologic system]]). Instead, most would consider the Cambrian sediment to be early [[Flood Geology|Flood]] deposits.<ref>Snelling, Andrew, ''Radiohalos in Granite'', chapter 5 of DeYoung, Don, "Thousands, Not Billions", Master Books, 2005, p.89, ISBN 0-89051-441-0.</ref>
| + | Common Cambrian [[fossil]]s are of [[trilobite]]s, and inarticulate [[brachiopod]]s,<ref>http://www.palaeos.com/Paleozoic/Cambrian/Cambrian.htm#bio</ref> [[coral]]s and primitive [[echinoderm]]s. They also include what are considered by evolutionists to be the first [[vertebrate]]s, "primitive" jawless fish. |
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| − | Common Cambrian [[fossil]]s are of [[trilobite]]s, and inarticulate [[brachiopod]]s,<ref>http://www.palaeos.com/Paleozoic/Cambrian/Cambrian.htm#bio</ref> [[coral]]s and primitive [[echinoderm]]s. They also include what are considered to be the first [[vertebrate]]s, "primitive" jawless fish.
| + | Fossil remains other than shells or carapaces are rare. One notable site for soft-bodied Cambrian invertebrate remains is the [[Burgess Shale]] of [[British Columbia]].<ref>http://wwwalt.uni-wuerzburg.de/palaeontologie/Stuff/casu9.htm</ref> |
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| − | Fossil remains other than shells or carapaces are rare, leading evolutionists to conclude that many of the organisms of the Cambrian were soft-bodied [[invertebrate]]s. One notable site for soft-bodied Cambrian invertebrate remains is the [[Burgess Shale]] of [[British Columbia]].<ref>http://wwwalt.uni-wuerzburg.de/palaeontologie/Stuff/casu9.htm</ref>
| + | == Era and evolution == |
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| − | == Era and evolution ==
| + | Under the uniformitarian dates assigned by secular geologists, it represents approximately the period of Earth's history from about 542 million years ago to 488 million years ago.<ref>Gradstein, F.M., and Ogg, J.G.,[http://www.stratigraphy.org/scale04.pdf Geologic Time Scale 2004 – Why, How, and Where Next!]</ref> Young Earth creationists reject the uniformitarian assumptions behind the dates derived by secular geologists, so they reject these dates (see [[geologic system]]). Instead, most would consider the Cambrian sediment to be early [[Flood Geology|Flood]] deposits.<ref>Snelling, Andrew, ''Radiohalos in Granite'', chapter 5 of DeYoung, Don, "Thousands, Not Billions", Master Books, 2005, p.89, ISBN 0-89051-441-0.</ref> |
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| | Evolutionists believe that the [[Cambrian Radiation]] gave rise to almost all living phyla, but often in extinct forms with small resemblance to typical living species. | | Evolutionists believe that the [[Cambrian Radiation]] gave rise to almost all living phyla, but often in extinct forms with small resemblance to typical living species. |
| | + | The rarity of shells or carapaces leads evolutionists to conclude that many of the organisms of the time were soft-bodied [[invertebrate]]s. |
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| | ==References== | | ==References== |