The ancestral mode of locomotion of dinosaurs is thought to be bipedalism. This is supported by the fossil finds of early, basal dinosaurs such as Eoraptor, which lived during the Middle Triassic, over 230 million years ago, and which are clearly bipedal. In fact, bipedalism evolved in the archosaurian ancestors of dinosaurs, and dinosaurs simply inherited it, as did their close relatives. Later on, some dinosaurs evolved quadrupedalism, and this happened independently in several lineages of dinosaurs, such as the ceratopsians (i.e. Triceratops) and sauropods (i.e. Apatosaurus). Some were mostly quadrupedal, but could occasionally assume a bipedal posture (it is believed that hadrosaurids were facultatively bipedal while running, for example). Finally, some retained their ancestral bipedalism - this includes the theropods, and their modern descendants, the birds.
It was a quadruped.
biped
A biped walks on two limbs and a quadruped walks on four.
Horse is to quadruped as human is to biped.
biped is for 2 legged (humans) quadruped is for for legged (animals such as cats and dogs etc
Biped.
A quadruped naturally outruns a biped. Even a sloth is a quadruped. A cheetah is also a quadruped.
Biped means two legged. (Bi=2) Quadruped is four legged. ( Quad=4) So a pig is a quadruped.
All four-legged animals are called quadrupeds.The word quadruped comes from the Latin words quad (four) and ped (foot).
they were the first to be biped
Quadruped.
biped,centipede,impediment,millipede,pedal,peddler,pedestrain,pedicure,quadruped,tripod
A cow is a quadruped, which means she is able to or can only stand on four feet. Bipedal animals are those that stand on two feet. These include humans and all bird species such as ostriches and eagles.
one uses two limbs to move, the oher uses fourquad=fourbi=two