Dinosaurs hais txog cov poj koob yawm txwv ze tshaj plaws thiab txhua tus xeeb ntxwv ntawm Triceratops, cov noog niaj hnub, thiab Diplodocus.
Rau kev yooj yim ntawm kev tshawb fawb, dinosaurs tuaj yeem muab faib ua avian thiab tsis yog avian dinosaurs. Ntawm lawv, tsis yog avian dinosaurs tsuas yog nyob thaum Mesozoic (Triassic, Jurassic, thiab Cretaceous) thiab tau ploj mus tag 65 lab xyoo dhau los. Thiab qhov kev nkag no feem ntau qhia tsis yog avian dinosaurs.
Cov ceg tawv uas muaj zog, tus Tsov tus tw ntev, thiab lub cev loj yog cov duab ntawm qee qhov tsis yog avian dinosaurs. Lawv feem ntau nyob hauv hav zoov lossis thaj chaw qhib ntawm ntug dej hiav txwv (los yog ntug hiav txwv plains).
Xyoo 1841, tus kws tshawb fawb Askiv Richard Owen, thaum kawm ob peb fossilized lizard zoo li cov pob txha, ntseeg tias lawv tau raug tso tseg los ntawm qee tus tsiaj prehistoric thiab tis npe rau lawv dinosaurs, lub ntsiab lus "lizards txaus ntshai".
Xyoo 1915, geologists Dr. George D. Laudberg thiab Dr. RR Moss los ntawm University of California nrhiav pom dinosaur fossils hauv Zigong City. Nyob rau lub Peb Hlis 2022, pab pawg tshawb fawb vertebrate los ntawm Lub Tsev Kawm Ntawv ntawm Lub Neej Kev Tshawb Fawb ntawm Yunnan University tau tshawb pom Yuxi dinosaur, uas yog qhov ntxov tshaj plaws armored dinosaur pom nyob rau hauv Asia mus txog rau hnub tim.
