IiDinosaurs zezinye zezilwanyana ezinomqolo zokuqala emhlabeni, ezibonakala kwixesha le-Triassic malunga ne-230 yezigidi zeminyaka eyadlulayo kwaye zijongene nokutshabalala ngexesha le-Late Cretaceous malunga ne-66 yezigidi zeminyaka eyadlulayo. Ixesha le-dinosaur libizwa ngokuba yi "Mesozoic Era" kwaye lihlukaniswe ngamaxesha amathathu: Triassic, Jurassic, kunye neCretaceous.
Ixesha leTriassic (iminyaka eyi-230-201 yezigidi eyadlulayo)
Ixesha le-Triassic lelona xesha lokuqala kunye nelona lifutshane kwixesha le-dinosaur, elithatha malunga ne-29 yezigidi zeminyaka. Ngeli xesha imozulu eMhlabeni yayingomile, amaqondo olwandle ayephantsi, nemimandla yomhlaba yayimincinane. Ekuqaleni kwexesha leTriassic, ii<em>dinosaurs zazizizilwanyana ezirhubuluzayo eziqhelekileyo, ezifana neengwenya namacikilishe anamhlanje. Ekuhambeni kwexesha, ezinye iidinosaur ngokuthe ngcembe zaba nkulu, njengeCoelophysis kunye neDilophosaurus.
Ixesha leJurassic (iminyaka eyi-201-145 yezigidi eyadlulayo)
Ixesha leJurassic lixesha lesibini lexesha le-dinosaur kwaye enye yezona zidumileyo. Ngeli xesha, imozulu yoMhlaba yaba shushu kwaye ifumile, iindawo zomhlaba zanda, kwaye amanqanaba olwandle anyuka. Kwakukho iintlobo ngeentlobo zeedinosaurs ezaziphila ngeli xesha, kuquka neentlobo ezaziwayo-kakuhle ezifana neVelociraptor, iBrachiosaurus, kunye neStegosaurus.
Ixesha leCretaceous (iminyaka eyi-145-66 yezigidi eyadlulayo)
Ixesha leCretaceous lixesha lokugqibela kunye nexesha elide lexesha le-dinosaur, elihlala malunga ne-80 yezigidi zeminyaka. Ngeli xesha, imozulu yoMhlaba yaqhubeka ifudumala, iindawo zomhlaba zanda ngakumbi, kwaye kwavela izilwanyana ezinkulu zaselwandle elwandle. Iidayinaso ngeli xesha zazihluke kakhulu, kubandakanya neentlobo ezidumileyo ezifana neTyrannosaurus Rex, iTriceratops, kunye neAnkylosaurus.
Ixesha le-dinosaur lahlulwe ngokwamaxesha amathathu: Triassic, Jurassic, kunye neCretaceous. Ixesha ngalinye linendawo yalo ekhethekileyo kunye needinosaurs ezimele. Ixesha leTriassic yaba sisiqalo sendalo yedayinaso, kunye needinosaurs ngokuthe ngcembe ziba namandla; ixesha leJurassic yayiyincopho yexesha le-dinosaur, kunye neentlobo ezininzi ezidumileyo ezivelayo; kwaye ixesha leCretaceous yaba sisiphelo sexesha ledayinaso kunye nelona xesha lohlukeneyo. Ubukho kunye nokuphela kwezi dinosaur zibonelela ngereferensi ebalulekileyo yokufunda ngendaleko yobomi kunye nembali yoMhlaba.
IWebhusayithi esemthethweni ye-Kawah Dinosaur:www.kawadinosaur.com
Ixesha lokuposa: May-05-2023