Specialized puab tsaig: Premaxilla qis margin ventral rau maxilla qis npoo.
Dab tsi yog kev faib loj ntawm Ornithopoda?
Ornithopoda muaj ntau pawg, suav nrog Fabrosauridae, Heterodontosauridae, Hypsilophodontidae, Iguanodontidae, thiab Hadrosauridae (duck-billed dinosaurs).
Lub puab tsaig twg yog qhov tshwj xeeb rau ornithopods?
Lub Ornithischia yog txhua tus neeg noj cov nroj tsuag, raws li paub. Ntxiv nrog rau cov qauv ntawm lub plab, lawv qhia ntau yam tshwj xeeb, suav nrog cov pob txha uas koom nrog ob lub puab tsaig qis thiab cov nplooj zoo li cov hniav sib txawv nyob rau sab saud.
Puas ornithopods nyob hauv herds?
Ornithopoda yog ib qho ua tau zoo tshaj plaws ntawm txhua pawg dinosaur herbivore. Cov tswvcuab thaum ub yog cov me me obligate bipeds, tab sis ntau yam hloov mus rau hauv facultative quadrupeds. … Cov "duck-billed" dinosaurs paub los ntawm tag nrho lub neej voj voog, thiab los ntawm tag nrho herds
Puas yog thyreophorans quadrupedal lossis bipedal?
Thyreophorans sawv cev rau cov armored dinosaurs, thiab yog ib tug clade ntawm (feem ntau) quadrupedal ornithischians Muaj cov yam ntxwv ntawm muaj cov osteoderms (cov cuab yeej cuab tam) hauv lawv daim tawv nqaij. Cov clades sib txawv ntawm thyreophorans qhia cov osteoderms hauv cov qauv sib txawv.
