where did the cambrian period get its name from
Cambrian The Cambrian Period ( /ˈkæmbriən/ or /ˈkeɪmbriən/) was the first geological period of the Paleozoic Era, of the Phanerozoic Eon.[6] 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.[7] Its subdivisions, and its base, are somewhat in flux. The period was established (as “Cambrian series”) by Adam Sedgwick,[6] who named it after Cambria, the Latinised form of Cymru, the Welsh name for Wales, where Britain's Cambrian rocks are best exposed.[8][9][10] 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.[11]
Cwm Rhondda Arglwydd, arwain trwy'r anialwch, Fi, bererin gwael ei wedd, Nad oes ynof nerth na bywyd Fel yn gorwedd yn y bedd: Hollalluog, Hollalluog, Ydyw'r Un a'm cwyd i'r lan. Ydyw'r Un a'm cwyd i'r lan Agor y ffynhonnau melus 'N tarddu i maes o'r Graig y sydd; Colofn dân rho'r nos i'm harwain, A rho golofn niwl y dydd; Rho i mi fanna, Rho i mi fanna, Fel na bwyf yn llwfwrhau. Fel na bwyf yn llwfwrhau. Pan yn troedio glan Iorddonen, Par i'm hofnau suddo i gyd; Dwg fi drwy y tonnau geirwon Draw i Ganaan – gartref clyd: Mawl diderfyn. Mawl diderfyn Fydd i'th enw byth am hyn. Fydd i'th enw byth am hyn.
Polka dot It is likely that the term originated in popularity of polka dance at the time the pattern became fashionable, just as many other products and fashions of the era also adopted the "polka" name.[1]
Small intestine Food from the stomach is allowed into the duodenum through the pylorus by a muscle called the pyloric sphincter.