Dinosaurs waa mid ka mid ah laf-dhabarka ugu horreeya ee Dunida, oo soo muuqday xilligii Triassic qiyaastii 230 milyan oo sano ka hor waxayna wajahayaan dabar-goynta xilliga dambe ee Cretaceous qiyaastii 66 milyan oo sano ka hor. Xilligii dinosaurka waxaa loo yaqaan "Mesozoic Era" waxaana loo qaybiyaa saddex xilli: Triassic, Jurassic, iyo Cretaceous.
Muddada Triassic (230-201 milyan sano ka hor)
Muddada Triassic waa xilliga ugu horreeya uguna gaaban ee xilligii dinosaurka, oo soconaya ilaa 29 milyan oo sano. Cimilada dhulku wakhtigan waxa ay ahayd mid aad u qalalan, heerka baddu waxa uu ahaa mid hooseeya, dhulkuna wuu yaraa. Bilowgii xilliga Triassic, dinosaurs waxay ahaayeen uun xamaaratada caadiga ah, oo la mid ah yaxaasyada casriga ah iyo qorratada. Waqti ka dib, qaar ka mid ah dinosauryada ayaa si tartiib tartiib ah u weynaatay, sida Coelophysis iyo Dilophosaurus.
Xilliga Jurassic (201-145 milyan sano ka hor)
Xilliga Jurassic waa xilliga labaad ee xilligii dinosaurka iyo mid ka mid ah kuwa ugu caansan. Inta lagu jiro wakhtigan, cimilada dhulku waxay noqotay mid diiran oo qoyan, dhulka dhulku wuu kordhay, heerka baddana kor buu u kacay. Waxaa jiray noocyo badan oo kala duwan oo dinosaurs ah oo noolaa muddadan, oo ay ku jiraan noocyada caanka ah sida Velociraptor, Brachiosaurus, iyo Stegosaurus.
Muddada Cretaceous (145-66 milyan sano ka hor)
Xilliga Cretaceous waa xilliga ugu dambeeya iyo muddada ugu dheer ee xilliga dinosaur, oo soconaya ilaa 80 milyan oo sano. Muddadaas, cimilada dhulku waxay sii waday inay diirimaad, dhulalka dhulkuna aad bay u sii ballaadheen, xayawaan badeed oo waaweyn ayaa ka soo muuqday badaha. Dinosaurs inta lagu jiro muddadan ayaa sidoo kale aad u kala duwan, oo ay ku jiraan noocyada caanka ah sida Tyrannosaurus Rex, Triceratops, iyo Ankylosaurus.
Xilliga Dinosaur waxa loo qaybiyaa saddex xilli: Triassic, Jurassic, iyo Cretaceous. Xilli kastaa wuxuu leeyahay deegaan u gaar ah iyo dinosaurs wakiil ah. Muddadii Triassic waxay ahayd bilawgii horumarinta dinosaurs, iyada oo dinosaurs ay si tartiib tartiib ah u sii xoogaysanayeen; xilligii Jurassic wuxuu ahaa kii ugu sarreeyay xilligii dinosaurka, oo leh noocyo badan oo caan ah oo soo muuqday; iyo xilligii Cretaceous waxay ahayd dhammaadka xilligii dinosaurka iyo sidoo kale xilliga ugu kala duwan. Jiritaanka iyo dabar-goynta dinosauryadan ayaa tixraac muhiim ah u ah barashada horumarka nolosha iyo taariikhda dhulka.
Bogga rasmiga ah ee Kawah Dinosaur:www.kawahdinosaur.com
Waqtiga boostada: May-05-2023