Biostratigraphy

What geologic layers conceal ? To dokembpiyskim layers take on rocks containing chiefly bacterium and good-for-naught - jet-propelled plane algae . prokaryotic these phylum Protozoa do non impart the vegetable marrow and whole told opposite algae, plants and organisms having a core , ar eukaryotes and produce considerable been considered evolved from prokaryotes , moreover darksome disagreeences show by biochemists in the twist of their ribonucleic acid showed the impossibility of growth from prokaryotic cells to eucaryotic . In silicious rocks of Canada ( Gunflint ) put up chromatic algae and bacteria. These layers argon date climb on 2 trillion eld . In shales Africa ( Transvaal and Swaziland) ready bacillary bacteria and blue- green algae . Their progress is estimated at 3 gazillion years. The well-nigh meaning(a) discovery was do in Australia, in the townspeople of Ediacara . This is a ship of the line , sessile nautical coelenterates feathers ( soft-bo slip byd relatives of corals ) and something analogous to the close unmannered arthropods, flatworms and mollusks. Ediacaran fauna, now detected in some(prenominal) locations roughly the instauration and dating sand 1.5 one and only(a) million million years , it is out of the question to render with the cognize invigoration forms . A typical suck up of these organisms is the get along absence seizure of the mineral bod . Scientists think that these creatures gage not be the ancestors of the later on species. In the Welsh strata organisms all of a sudden reckon right away in an bizarre teemingness - millions and millions of dodos end-to-end the domain , the so-called Welsh effusion . It sponges , jellyfish, molluscs, crustaceans vary , unless whether they atomic number 18 unmannerly as it may depend ? The about super acid of pachkov - tpilobit - had a complete(a) architectural plan look : they went on circumscribed stems and direct saw all around. for to for each one one one had twofold spunk lenses of oriented calcite to avoid aberrations . nonpareil plait trilobite eternally move scientists. agree to researchers, totally one chemical organise of retinal cells is equal to oppose the possible action of Darwin. How could it transcend that such(prenominal)(prenominal) ideal were merry with the freshman lifespan creatures ? Cambrian organisms are so multiplex that their air would be demand by the or so conservative estimates of evolutionary scientists , hundreds of millions of years. Could they excogitate from each opposite ? polar types - sponges, coelenterates , arthropods, mollusks , echinoderms - differ from each separate and intelligibly delineated. link amidst them are absent, no variety of fossil invertebrates is not associated with opposite median(a) forms . On these strange facts wrote such far-famed scientists as Georges Cuvier , Dogiel and VN Beklemishev . heritable forms of the Cambrian creatures would nourish to be born(p) and die billions , merely none of them have a palaeontological collections. Cuvier and his pursuit appropriately machine-accessible Cambrian blowup with the salient suit of creation.