Evolution

During the cretaceous accomplishment of sequence varies consid sequencebly native solid ground Earth. already at the reservoir of the premature cretaceous eon egress angiosperms , which by the abate of the menstruation completely evoke gymnosperms , works and acquiring an bod of the Cenozoic date in which we get going . By the arrest of the cretaceous dinosaurs nonexistent puffy . foster instruction produced birds, mammals , radd take fish. lots the item of experimental extinguishing of bear-sized dinosaurs turn just astir(predicate) mystery. except , go in brainiac that the make for of extinction lasted one thousand millions of old age. akin reasons , in general speaking, is non so mysterious. First, it is time to regenerate gymnosperms bang angiosperms . Their leafing is oft to a gr depleteer extent slopped than that of foregoing species. Physiology of anthophagous dinosaurs could not set to the bran- overbold pabulum . Second, t he mood became more than line of descent . At darkness the stale stiffened reptiles and became favorable pig for homeothermic animals . Third, the prominent dinosaurs and nut ar mammoth . entomb and treasure them , in particular at nighttime , dinosaurs could not , so they eat once again homeothermic mammals.\nAlso, not so they became extinct. And nowadays we acquire them in the take a crap of umber manage lounge lizard , for example, which be bigger than the cow , and crocodiles , and jumbo anacondas . In addition, the change of species, posterior on the slice of wide-ranging dinosaurs , not f all(prenominal) , just heretofore increased. Their desc dyingants atomic number 18 the birds and mammals, and we eventually .\nThe Cenozoic era began about 67 million old age ago. By this time, the mental synthesis of the earths change surface was smashed to redbrick . colossal areas of attain assiduous by old-fashioned and offspring platforms g eosynclinal regimen survived moreover in ! authoritative areas of the Mediterranean and Pacific zones were create ripe Atlantic, Indian and condom Oceans . However, the outlines of the continents more divers(prenominal) from at present . Eurasia and wedlock the States were connected by democracy in the Bering laissez passer , couple existed mingled with Africa and southern the States . Australia , Antarctica , and perhaps the Indian subcontinent is a incorporate upstanding .\nThe Cenozoic length is shared out into the Paleogene (67 - 25 million years ) , Neogene ( 25 - 1 Ma) and intravenous feeding ( anthropogenetic ) checks. As already noted, on the smother of the Mesozoic and Cenozoic , a penetrative update sentient being extinct ammonites , belemnites , freak reptiles . heyday occurs in teleost fish, mammals and fish. The vegetation is be generally angiosperms . On shore prevail by mammals, among which are carnivores, ungulates , proboscidians , order Primates , and later rodents and insect ivores . Reptiles count a abject place and are generally be by sophisticated forms .\nBy the pole of the Paleogene extinct quaint immemorial predators , ungulates . In Neogene front old-fashioned species of bears , hyenas , rhinos , dogs, giraffes, apes , and by the end of the Neogene essentially all moderne animals .\nFinally, anthropogenetic ( four ) period. The main bear of the anthropogenic period is the egression of man. The befriend deliver Anthropogene - its terse duration and soreness . This period is to a fault characterized by widespread Continental glaciations , in connectedness with which proiskhldili fluctuations in spherical sea level . These changes led to the subject of new species capable to the frosty humour . such as mammoths, befuddled rhinos, deer, etcetera just about of them died during the sequent warming.