Iidinosaur zezinye zezilwanyana ezinethambo lomqolo zokuqala emhlabeni, zavela kwixesha leTriassic malunga neminyaka eyi-230 yezigidi eyadlulayo kwaye zijongene nokuphela kwixesha leLate Cretaceous malunga neminyaka eyi-66 yezigidi eyadlulayo. Ixesha ledinosaur laziwa ngokuba yi "Mesozoic Era" kwaye lahlulwe langamaxesha amathathu: iTriassic, iJurassic, kunye neCretaceous.
Ixesha leTriassic (kwiminyaka eyi-230-201 yezigidi eyadlulayo)
Ixesha leTriassic lelona xesha lokuqala nelifutshane kwixesha leedinosaur, elihlala malunga neminyaka eyi-29 yezigidi. Imozulu eMhlabeni ngeli xesha yayimile, amanqanaba olwandle ayephantsi, kwaye iindawo zomhlaba zazincinci. Ekuqaleni kwexesha leTriassic, iidinosaur zazizizilwanyana ezirhubuluzayo nje eziqhelekileyo, ezifana neengwenya zanamhlanje kunye neenciniba. Ekuhambeni kwexesha, ezinye iidinosaur zakhula kancinci kancinci, njengeCoelophysis kunye neDilophosaurus.
Ixesha leJurassic (kwiminyaka eyi-201-145 yezigidi eyadlulayo)
Ixesha leJurassic lelesibini kwixesha leedayinaso kwaye lelinye lawona adumileyo. Ngeli xesha, imozulu yoMhlaba yaba shushu kwaye inomswakama, iindawo zomhlaba zanda, kwaye amanqanaba olwandle anyuka. Kwakukho iintlobo ngeentlobo zeedayinaso ezaziphila ngeli xesha, kuquka iintlobo ezaziwayo ezifana neVelociraptor, Brachiosaurus, kunye neStegosaurus.
Ixesha leCretaceous (kwiminyaka eyi-145-66 yezigidi eyadlulayo)
Ixesha leCretaceous lelona xesha lokugqibela nelide kakhulu kwixesha leedinosaur, elihlala malunga neminyaka eyi-80 yezigidi. Ngeli xesha, imozulu yoMhlaba yaqhubeka nokufudumala, iindawo zomhlaba zanda ngakumbi, kwaye kwavela izilwanyana ezinkulu zaselwandle elwandle. Iidinosaur ngeli xesha nazo zazahlukene kakhulu, kuquka iintlobo ezidumileyo ezifana neTyrannosaurus Rex, iTriceratops, kunye neAnkylosaurus.
Ixesha leedinosaur lahlulwe langama-period amathathu: iTriassic, iJurassic, kunye neCretaceous. Ixesha ngalinye linendalo yalo eyahlukileyo kunye needinosaur ezimeleyo. Ixesha leTriassic lalilisiqalo sokuguquka kweedinosaur, apho iidinosaur zazisiya ziqina kancinci kancinci; ixesha leJurassic lalilincopho yexesha leedinosaur, apho kwavela iintlobo ezininzi ezidumileyo; kwaye ixesha leCretaceous lalilisiphelo sexesha leedinosaur kwaye lalikwalixesha elahluke kakhulu. Ubukho kunye nokuphela kwezi dinosaur kunika isalathiso esibalulekileyo sokufunda ukuguquka kobomi kunye nembali yoMhlaba.
IWebhusayithi esemthethweni ye-Kawah Dinosaur:www.kawahdinosaur.com
Ixesha lokuthumela: Meyi-05-2023