Ubomi Emhlabeni kwixesha Cretaceous

ixesha Cretaceous ke ixesha lokugqibela, ixesha lokugqibela Mesozoic. Waye walandelwa സോഫ്റ്റ്വെയര് isoftwe, ngokutsho izibalo komhlaba, iminyaka ngeenxa ethile million 145 eyadlulayo yaye yathatha iminyaka asibhozo million iminyaka, emva koko ekuqaleni kwethuba ePhakamileyo yahlukile, i Cenozoic, ixesha - ". Ubekelwe ubomi entsha" Igama eli nqanaba kunokuba elide yophuhliso Umhlaba efunyenwe ngokunxulumene yokuba yena wasishiya ilifa yesibambiso ngetshokhwe enamandla Marl kunye nesanti. Nangona kule minyaka izizigidi asibhozo on Earth akuzange kwenzeke nayiphi na intlekele ngomlinganiselo langa, yaye ngoko, ekutshabalaleni inani elikhulu lweentlobo zezityalo nezilwanyana, kodwa ukuhamba ziitectonic plates, utshintsho komgangatho wolwandle kunye kwemozulu ukutshintsha ehlabathini owenza izilungiso kule nkqubo yophuhliso lwabantu eziphilayo .

Cretaceous yahlulwe sub-kumacandelo: wokulinganisa ezisezantsi neziphezulu. Ukuze siqonde indlela ubomi babakho ngendaleko Ezilwandle nasemanzini, kumhlaba kwaye emoyeni ixesha, kufuneka ukuchaza ngokufutshane sicatshulwa, ukususela kwinqanaba സോഫ്റ്റ്വെയര് isoftwe iinkqubo ziitectonic plates orogenic. Xa xesha esezantsi cretaceous of ajenos kunye Laurasia waqhubeka ukuba kude omnye komnye. Kanye inkqubo efanayo lenzekile Afrika naseMzantsi Merika. Ngenxa yoko, i- Atlantic Ocean ngokuya eziqhelekileyo kuthi ngoku achaze. Kodwa ngasempumalanga ajenos kwaba ihlanganiswa ne Laurasia. Australia ke apho ahlala khona, yaye ngoku, kodwa ke amanzi lenyuka kuphela yesithathu indawo yangoku.

Upper Cretaceous luphawulwa yokuba kumntla ikhweyitha amanqanaba ulwandle yaqala ukuphakama, neendawo enkulu eMpuma Yurophu, Western eSiberia, yonke bomxukuxela, yaye phantse zonke Canada mihla phantsi kwamanzi. Noko ke, ekupheleni kwexesha Cretaceous kobasemhlabeni waqala ukufana imilo emhlabeni wayo mihla.

Kweli xesha Cretaceous kutshintshiwe kwaye imozulu. Yena, ke, yaba ufudumele ngaphezu mihla. Space of Europe yanamhlanje wayifulela kwihlathi yetropiki. Noko ke, maxa ezinezinga eliphezulu ziye mzuzu amaxesha, nekhephu ebusika. Olo tshintsho lwemozulu sibangele ukuba yokuba, kunye ibihlungu kunye gymnosperms wabonakala izityalo zakrytosemennye. imithi ezinjalo beech, ezinde, uthuthu, Anut, wabonakala Ixesha Cretaceous, wasinda de namhlanje ngaphandle naluphi na utshintsho. Land fumene izityalo eneentyatyambo yokuqala - MAGNOLIA yokuqala, wavuka ngoko. Xa kweentyatyambo ibe baba nethuba lokuba umungu yabo ikhutshwa umoya nje kuphela, kodwa izinambuzane. izityalo Iziqhamo, ukubeka imbewu ukusasazeka iziqhamo nge isilwanyana sisitya iziqhamo. Ngenxa yoko, izityalo iziqhamo nezidubula waphuphuma ehlabathini lonke.

Utshintsho kwi nezityalo kwixesha Cretaceous kwakhokelela ukuvela kweentlobo ezintsha zezilo. Emoyeni Steel ezimbalini ibhabhathane yokuqala kunye bee ezibhabhayo bondle incindi kweentyatyambo. Ulwandle iza ubunganga foraminifera, ufile kunye iqokobhe crumbled awamnika igama lonke eli xesha neznye. Kunye nabo kukho nezinye izilwanyana, Amon. Ubukumkani fish kugcwele ookrebe kunye neentlanzi nokudleka. Izilwanyana ngexesha Mesozoic - ngaphezu koko, iidayinaso kunye ezanyisayo yokuqala - ngokukhuselekileyo "owahamba" ukusuka സോഫ്റ്റ്വെയര് isoftwe ukuya Cretaceous. Kodwa phezu ngetshokhwe eziliqela isiphelo ufile-isebe iidayinaso birdlike ziyafa, ezifana archeopteryx. Kodwa kukho intaka - iminyanya ngamarhanisi mihla, plovers, amadada loon.

Le Era Mesozoic (ixesha സോഫ്റ്റ്വെയര് isoftwe ingakumbi), njengoko edumileyo umboniso, yaziwa ngokuba Ixesha Dinosaurs. Ngokubanzi, ulawulo iidayinaso yamandulo yagcinwa yekalika. Kodwa kule ngexesha lokugqibela, Stegosaurus uyanyamalala ebusweni bomhlaba; noku kwakhe Tyrannosaurus. flora Rich negalelo ukuvela iindidi ezintsha ze KweDangerous herbivorous: Triceratops, iguanodon ankylosaur kunye nabanye. Sinokuthi ukuba iintlobo ezahlukeneyo era idayinaso Cretaceous uye wenyuka kakhulu. Kwaye ngeli xesha, ezimvuleni iingxilimbela imingxuma zabo, baza bahlala kunye nabalawuli elizayo woMhlaba - ezanyisayo. Ezi zilwanyana, ezifana yeempuku kunqabile ukufikelela imitha enye ubude, iintlobo inkoliso egglayers, marsupials izilwanyana ezincinane testaceous okanye ezincinane, zalishumi ukuya ku 500 g. Kodwa emva kwabo ngekamva.