Nthawi ya Archean |
Nthawi ya Proterozoic |
Palaeozoic |
Nthawi ya Mesozoic |
Mudadya chiyani komanso mumakhala ndi moyo wotani?
Kusaka sikunachitike m'matumba, monga momwe zimadyera ambiri, koma modekha. Amatha kusaka pterosaurs ndi herbivores a nthawi imeneyo, kuyembekezera omwe akukumana nawo pomubisalira. Nthawi zambiri samapangitsa wodwalayo kudikirira kuti aphedwe, amayesa kumupha, chifukwa adamuluma.
Koma ngakhale zinali zonse, chakudya chachikulu chomwe chimakhala ndi nsomba, nthawi zina chimawombera nkhuku, akamba ndi ng'ona - adapita kudziwe ndikukadikiranso mwayi woti adzaukire ndi kudya nsomba zambiri momwe zingathere. Palibe zodabwitsa kuti amawoneka ngati ng'ona, monga iwowa, amakonda kukhala m'madzi, kusangalala ndi mtendere ndipo pokhapokha amayamba kusaka. Nthawi ndi nthawi, kuphatikiza pa nsomba ndi nsomba zina, ankadyanso zovalazo.
Zambiri zamapangidwe amthupi
Anali ndi kukula kwakukulu komanso mafupa amphamvu. Ngakhale zimphona zotchuka monga giotosaurus ndi wankhanza sizinathe kufikira kukula kwake; Monga tikuwonera pachithunzichi, ma spikesi ataliatali, omwe adakutidwa ndi chikopa, adakutidwa ndi msana wamphongo wa spinosaurus. Pafupifupi pakatikati, motalika kuposa omwe ali m'munsi mwa khosi ndi mchira. Chovala chachitali kwambiri chinali pafupifupi mamita awiri, kuti chikhale chofanana - 1.8 m. "Sail" idagwiritsidwa ntchito kukopa zazikazi ndipo inali chida champhamvu kwambiri.
Miyeso
Kutalika, akuluakulu amafika 15 - 18m, ma dinosaurs achichepere analinso akulu kwambiri - 12m
Kutalika kwa 4 - 6m (kutengera miyendo ya zavr yomwe idayimilira, 4 ndi 2, motsatana)
Kulemera kwa thupi - kuyambira 9 mpaka 11.5t (wamkulu), 5t - achinyamata zavr
Mutu
Nkhope ya buluziyo inkangokhala ngati nkhope ya ng'ona zamakono. Chigoba chinali chachikulu, koma chopapatiza kumayambiriro kwa chibwano, chomwe chinali ndi mano owoneka bwino (amatha kuluma pakhungu lililonse). Panali mano ochepa: zoyambira zam'mwamba ndi zotsika zinali ndi mano 7 zazitali, ndipo kumbuyo kwawo - 12 - 13 mbali zonse zinali zazitali, koma zowawa chimodzimodzi.
Nyali
Mpaka pano, mabwinja athunthu sanapezeke, asayansi anafunika kugwira ntchito nthawi yayitali kuti atengenso mawonekedwe awo. Zimadziwika kuti anali ndi 4 mwa iwo ndipo aliyense anali ndi zopindika. Miyendo yakumbuyo imakhala yotalikirapo kuposa kutsogolo, koma sanali osiyana mwamphamvu, i.e. anali ndi mphamvu zambiri kuti azisunga miyendo yambiri pamiyendo yawo ndikung'amba omwe akuwasokoneza.