Ama-Dinosaurs angezinye zezilwane ezinomgogodla zakuqala Emhlabeni, avela enkathini ye-Triassic cishe eminyakeni eyizigidi ezingu-230 edlule futhi ebhekene nokushabalala esikhathini se-Late Cretaceous cishe eminyakeni eyizigidi ezingu-66 edlule. Inkathi ye-dinosaur yaziwa ngokuthi "i-Mesozoic Era" futhi ihlukaniswe izinkathi ezintathu: i-Triassic, i-Jurassic, ne-Cretaceous.
I-Triassic Period (iminyaka eyizigidi ezingu-230-201 edlule)
Isikhathi se-Triassic yisikhathi sokuqala nesifushane kunazo zonke zenkathi ye-dinosaur, ehlala cishe iminyaka eyizigidi ezingu-29. Isimo sezulu eMhlabeni ngalesi sikhathi sasomile, amazinga olwandle ephansi, nezindawo ezisemhlabeni zincane. Ekuqaleni kwenkathi ye-Triassic, ama-dinosaurs ayemane nje ezilwane ezihuquzelayo ezivamile, ezifana nezingwenya nezibankwa zanamuhla. Ngokuhamba kwesikhathi, amanye ama-dinosaurs akhula kancane kancane, njenge-Coelophysis ne-Dilophosaurus.
I-Jurassic Period (iminyaka eyizigidi ezingu-201-145 edlule)
Isikhathi se-Jurassic yisikhathi sesibili senkathi ye-dinosaur futhi enye edume kakhulu. Phakathi nalesi sikhathi, isimo sezulu soMhlaba saqala ukufudumala futhi sinomswakama, izindawo zomhlaba zanda, futhi amazinga olwandle akhuphuka. Kwakukhona izinhlobo eziningi ezihlukahlukene zama-dinosaurs ezaziphila phakathi nalesi sikhathi, kuhlanganise nezinhlobo ezaziwa kakhulu njenge-Velociraptor, i-Brachiosaurus, ne-Stegosaurus.
I-Cretaceous Period (iminyaka eyi-145-66 million edlule)
Isikhathi se-Cretaceous yisikhathi sokugcina futhi eside kunazo zonke zenkathi ye-dinosaur, ehlala cishe iminyaka eyizigidi ezingu-80. Ngalesi sikhathi, isimo sezulu soMhlaba saqhubeka nokufudumala, izindawo zomhlaba zanda kakhulu, futhi izilwane zasolwandle ezinkulu zavela olwandle. Ama-Dinosaurs ngalesi sikhathi nawo ayehlukene kakhulu, kuhlanganise nezinhlobo ezidumile ezifana ne-Tyrannosaurus Rex, i-Triceratops, ne-Ankylosaurus.
Inkathi ye-dinosaur ihlukaniswe izinkathi ezintathu: i-Triassic, i-Jurassic, ne-Cretaceous. Inkathi ngayinye inemvelo yayo eyingqayizivele kanye nama-dinosaurs amele. Isikhathi se-Triassic saba ukuqala kokuziphendukela kwemvelo kwe-dinosaur, nama-dinosaur kancane kancane eba namandla; inkathi yeJurassic yayiyingqophamlando yenkathi yama-dinosaur, nezinhlobo eziningi ezidumile ezivelayo; futhi inkathi yeCretaceous kwaba ukuphela kwenkathi yama-dinosaur kanye nenkathi ehluke kakhulu. Ukuba khona kanye nokushabalala kwalawa ma-dinosaur kunikeza inkomba ebalulekile yokufunda ukuvela kwempilo nomlando woMhlaba.
Iwebhusayithi esemthethweni ye-Kawah Dinosaur:www.kawadinosaur.com
Isikhathi sokuthumela: May-05-2023