Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: MaDinosaurs akaparadzana nemadzitateguru awo earchosaur mukati mepakati kusvika kunopera Triassic nguva, makore anenge mamirioni makumi maviri mushure mekutsakatika kwechiitiko chePermian-Triassic chakatsvaira inofungidzirwa 95% yehupenyu hwese paPasi. Kuverengwa kwezera kwezvinyorwa zvematombo zvaiva nemapfupa emhuka dzinotangira kudai dzainzi dinosaur dzainzi Eoraptor dzaiva nemakore anosvika mamiriyoni 231.4 zvakaratidza kuti dzaivapo kare panguva iyi. Nyanzvi dzezvinhu zvekare dzinofunga kuti Eoraptor yakafanana nemadzitateguru emadhinosaur ose; kana izvi zviri zvechokwadi, mavara ayo anoratidza kuti madinosaur okutanga aiva maduku, makudo anofamba netsoka mbiri. Kuwanikwa kwevanhu vekare, vakaita semadhinosaur akaita seMarasuchus neLagerpeton muArgentina Middle Triassic strata kunotsigira maonero aya; kuongorora zvisaririra zvakawanikwa kunoratidza kuti mhuka idzi dzaiva duku, dzaifamba netsoka mbiri. MaDinosaurs angave akaonekwa kare kare makore 243 mamiriyoni apfuura, sezvinoratidzwa nezvisaririra zve genus Nyasasaurus kubva panguva iyoyo, kunyange zvazvo zvisaririra zvinozivikanwa zvemhuka idzi zvisingagoni kuzivikanwa kana dziri maDinosaurs kana kuti hama dzepedyo zvikuru dzemaDinosaurs. Munguva pfupi yapfuura, zvakatemwa kuti Staurikosaurus kubva kuSanta Maria Formation yakatangira makore 233.23 Ma, zvichiita kuti ive yakarebesa muzera rezvematongerwe enyika kupfuura Eoraptor. Apo madinosaurs akaoneka, akanga asiri mhuka dzomunyika dzaitonga. Nzvimbo dzokugara dzapanyika dzaigarwa nemarudzi akasiyana-siyana earchosauromorphs uye therapsids, akadai se cynodonts uye rhynchosaurs. Vakwikwidzi vavo vakuru vakanga vari pseudosuchia, vakadai se aetosaurs, ornithosuchids uye rauisuchians, avo vakabudirira zvikuru kupfuura madinosaurs. Mhuka zhinji idzi dzakatsakatika munguva yeTriassic, mune chimwe chezviitiko zviviri. Chokutanga, makore anenge mamiriyoni 215 akapfuura, marudzi akasiyana-siyana earchosauromorphs, kusanganisira protorosaurs, akatsakatika. Ikoku kwakateverwa nechiitiko chokutsakatika kweTriassic-Jurassic (anenge makore 200 miriyoni akapfuura), icho chakaona kuguma kwemamwe mapoka akawanda eakare archosaurs, akadai se aetosaurs, ornithosuchids, phytosaurs, uye rauisuchians. Rhynchosaurs uye dicynodonts vakapona (zvirinani mu...  Mubvunzo: Vaongorori vezvisikwa zvekare vanofunga kuti dinosaur ipi inomiririra rudzi rwacho?
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