WING BONES Qhov nruab nrab-loj Istiodactylus hloov zuj zus thaum lub sij hawm Cretaceous, thiab nws cov contemporaries suav nrog cov tsiaj ya loj tshaj plaws puas tau paub, xws li Pteranodon longiceps thiab Quetzalcoatlus northropi.
Quetzalcoatlus tuaj yeem ya sai npaum li cas?
Paleontologists kwv yees tias Quetzalcoatlus tuaj yeem tau ya mus txog128 mais ib teev (80 mais toj ib teev) thiab tuaj yeem mus txog 643 mais (400 mais) ib hnub. Nws cov leeg muaj zog tuaj yeem tso cai rau nws tawm mus rau saum huab cua sai sai.
Quetzalcoatlus tuaj yeem ya tau siab npaum li cas?
northropi muaj peev xwm ya mus txog 130 km / h (80 mph) rau 7 mus rau 10 hnub ntawm qhov siab ntawm 4, 600 m (15, 000 ft). Habib tau hais ntxiv txog qhov dav dav dav tshaj plaws ntawm 13, 000–19, 000 km (8, 000–12, 000 mi) rau Q. northropi.
Pterodactyls puas tau ya?
Cov ntsiab lus: Cov kws tshawb fawb tau pom tias
pterodactyls , ploj mus flying cov tsiaj reptiles tseem hu ua pterosaurs , muaj peev xwm zoo kawg li -- lawv tuaj yeem ya txij thaum yug. Txoj kev tshawb nrhiav pom tau pom tias pterosaurs , ploj mus flying cov tsiaj reptiles tseem hu ua pterosaurs , muaj peev xwm zoo kawg li. --lawv yuav ya txij yug.
Pterosaur tuaj yeem ya tau siab npaum li cas?
Cov tsiaj reptiles hlawv cov khw muag roj sib npaug rau "tus neeg zoo" txhua qhov kev mus ncig, kws tshaj lij hais. Loj pterosaurs tej zaum yuav yog qhov nquag-flierCov neeg sib tw ntawm lub hnub nyoog dinosaur, muaj peev xwm nce siabmus txog 10, 000 mais (16, 000 mais) ntawm qhov ncab, cov kws tshawb fawb hais tias (saib kab ntawm lub sijhawm ua ntej keeb kwm).
