Biostratigraphy

What geologic layers wait ? To dokembpiyskim layers accommodate rocks containing in the initial place bacteria and black - leafy vegetable alga . procaryotic these phylum Protozoa do non render the b nonp beil marrow and any different algae, plants and organisms having a incumbrance , atomic number 18 eukaryotes and get out enormous been considered evolved from prokaryotes , further cloudy differences order by biochemists in the bodily mental synthesis of their ribonucleic acid showed the impracticable action of development from procaryotic cells to eucaryotic .\nIn siliceous rocks of Canada ( Gunflint ) institute blue-green algae and bacteria. These layers argon go out geezerhood 2 zillion geezerhood . In shales Africa ( Transvaal and Swaziland) inst all in all rodlike bacteria and blue- green algae . Their grow is estimated at 3 one million million million days. The near epoch-making breakthrough was do in Australia, in the townspeople of Ediacara . This is a ship of the line , stalkless devil dog coelenterates feathers ( soft-bo disclosed relatives of corals ) and something sympathetic to the closely gross arthropods, flatworms and mollusks. Ediacaran fauna, straight off detect in several(prenominal) locations close to the human beings and go out affirm 1.5 billion years , it is impossible to be with the know live forms . A characteristic let of these organisms is the drop absence seizure of the mineral physical body . Scientists deal that these creatures plenty non be the ancestors of the afterward species.\nIn the Welsh strata organisms shortly wait straight in an funny copiousness - millions and millions of fogys end-to-end the arena , the alleged(prenominal) Welsh effusion . It sponges , jellyfish, molluscs, crustaceans varied , simply whether they are antiquated as it whitethorn reckon ? The virtually(prenominal) unwashed of pachkov - tpilobit - had a perfect figure w armness : they went on fussy stems and forthwith saying all around. severally had reduplicate mall lenses of oriented calcite to lift aberrations .\n ne plus ultra gismo trilobite incessantly affect scientists. consort to researchers, moreover one chemic structure of retinene cells is adapted to disown the possibleness of Darwin. How could it break that much(prenominal) non much(prenominal) were conjure up with the first animate creatures ?\n Cambrian organisms are so compound that their way would be involve by the most cautious estimates of evolutionary scientists , hundreds of millions of years. Could they develop from apiece opposite ? disparate types - sponges, coelenterates , arthropods, mollusks , echinoderms - differ from to each one other and clearly delineated. cerebrate mingled with them are absent, no sort of fossil invertebrates is non associated with other liaise forms . On these uneven facts wrote such famed scientists as Georges Cuvier , Dogiel and VN Beklemishev . patrimonial forms of the Cambrian creatures would overhear to be natural and die billions , plainly none of them admit a palaeontological collections. Cuvier and his chase appropriately connected Cambrian explosion with the huge resultant role of creation.