Ama-dinosaur angenye yezilwane ezinomgogodla zokuqala emhlabeni, avele esikhathini se-Triassic eminyakeni eyizigidi ezingu-230 eyedlule futhi abhekene nokuphela kwesikhathi se-Late Cretaceous eminyakeni eyizigidi ezingu-66 eyedlule. Isikhathi sama-dinosaur saziwa ngokuthi “i-Mesozoic Era” futhi sihlukaniswe ngezigaba ezintathu: i-Triassic, i-Jurassic, ne-Cretaceous.
Isikhathi se-Triassic (eminyakeni eyizigidi ezingu-230-201 edlule)
Isikhathi se-Triassic yisikhathi sokuqala nesifushane kakhulu sesikhathi sama-dinosaur, esithatha iminyaka engaba yizigidi ezingu-29. Isimo sezulu eMhlabeni ngalesi sikhathi sasisomile, amazinga olwandle ayephansi, kanti izindawo zomhlaba zazincane. Ekuqaleni kwesikhathi se-Triassic, ama-dinosaur ayeyizilwane ezihuquzelayo ezivamile, ezifana nezingwenya zanamuhla nezibankwa. Ngokuhamba kwesikhathi, amanye ama-dinosaur kancane kancane aba makhulu, njenge-Coelophysis ne-Dilophosaurus.
Isikhathi seJurassic (eminyakeni eyizigidi ezingu-201-145 edlule)
Isikhathi seJurassic yisikhathi sesibili sesikhathi samadayinaso futhi esinye sezithandwa kakhulu. Phakathi nalesi sikhathi, isimo sezulu soMhlaba saba sifudumele futhi sinomswakama, izindawo zomhlaba zanda, futhi amazinga olwandle akhuphuka. Kwakukhona izinhlobo eziningi ezahlukene zamadayinaso ezaziphila phakathi nalesi sikhathi, kufaka phakathi izinhlobo ezaziwayo njengeVelociraptor, Brachiosaurus, kanye neStegosaurus.
Isikhathi Sokuphila Kwabantu (eminyakeni eyizigidi ezingu-145-66 edlule)
Isikhathi seCretaceous yisikhathi sokugcina neside kakhulu sesikhathi samadayinaso, esithatha iminyaka engaba yizigidi ezingu-80. Phakathi nalesi sikhathi, isimo sezulu soMhlaba saqhubeka nokufudumala, izindawo zomhlaba zanda kakhulu, futhi kwavela izilwane ezinkulu zasolwandle olwandle. Amadayinaso phakathi nalesi sikhathi nawo ayehlukahlukene kakhulu, kufaka phakathi izinhlobo ezidumile ezifana neTyrannosaurus Rex, iTriceratops, kanye ne-Ankylosaurus.
Isikhathi samadayinaso sihlukaniswe ngezinkathi ezintathu: iTriassic, iJurassic, kanye neCretaceous. Isikhathi ngasinye sinendawo yaso ehlukile kanye namadayinaso amele. Isikhathi samadayinaso sasiwukuqala kokuvela kwamadayinaso, lapho amadayinaso ayeqina kancane kancane; isikhathi samaJurassic sasiyingqophamlando yesikhathi samadayinaso, lapho kuvela khona izinhlobo eziningi ezidumile; kanti isikhathi samaDayinaso sasiwukuphela kwenkathi yamadayinaso kanye nenkathi ehlukahlukene kakhulu. Ukuba khona nokuphela kwala madayinaso kunikeza inkomba ebalulekile yokufunda ukuvela kokuphila kanye nomlando woMhlaba.
Iwebhusayithi esemthethweni ye-Kawah Dinosaur:www.kawahdinosaur.com
Isikhathi sokuthunyelwe: Meyi-05-2023