<P> The Cambrian Period ( / ˈkæmbriən / or / ˈkeɪmbriən / ) was the first geological period of the Paleozoic Era , of the Phanerozoic Eon . The Cambrian lasted 55.6 million years from the end of the preceding Ediacaran Period 541 million years ago ( mya ) to the beginning of the Ordovician Period 485.4 mya . Its subdivisions , and its base , are somewhat in flux . The period was established ( as `` Cambrian series '' ) by Adam Sedgwick , who named it after Cambria , the Latinised form of Cymru , the Welsh name for Wales , where Britain 's Cambrian rocks are best exposed . The Cambrian is unique in its unusually high proportion of lagerstätte sedimentary deposits , sites of exceptional preservation where `` soft '' parts of organisms are preserved as well as their more resistant shells . As a result , our understanding of the Cambrian biology surpasses that of some later periods . </P>
<P> The Cambrian Period ( / ˈkæmbriən / or / ˈkeɪmbriən / ) was the first geological period of the Paleozoic Era , of the Phanerozoic Eon . The Cambrian lasted 55.6 million years from the end of the preceding Ediacaran Period 541 million years ago ( mya ) to the beginning of the Ordovician Period 485.4 mya . Its subdivisions , and its base , are somewhat in flux . The period was established ( as `` Cambrian series '' ) by Adam Sedgwick , who named it after Cambria , the Latinised form of Cymru , the Welsh name for Wales , where Britain 's Cambrian rocks are best exposed . The Cambrian is unique in its unusually high proportion of lagerstätte sedimentary deposits , sites of exceptional preservation where `` soft '' parts of organisms are preserved as well as their more resistant shells . As a result , our understanding of the Cambrian biology surpasses that of some later periods . </P>
where did the cambrian period get its name from
where did the cambrian period get its name from
Cambria , the Latinised form of Cymru , the Welsh name for Wales , where Britain 's Cambrian rocks are best exposed
Cambria , the Latinised form of Cymru , the Welsh name for Wales , where Britain 's Cambrian rocks are best exposed