In the course of the Jurassic, as we saw, a branch of these biped, bird-footed vegetarians developed heavy armour, and returned to the quadrupedal habit.
On the other hand, a branch of the vegetarian Ornithopods developed heavy armour, for defence against the carnivores, and became, under the burden of its weight, the quadrupedal and monstrous Stegosauria and Ceratopsia.
We have a specimen of quadrupedal marks, with five toes to each foot, about an inch long, which may have been made by these animals.
Once the grasping power was gained, the first step of change from the quadrupedal to the semi-erect attitude was completed.
In the lower monkeys and the lemurs, the bones of the pelvis are altogether quadrupedal in character.
In the ape tribe we are able to trace nearly every step by which the gulf between quadruped and biped has been crossed, from the quadrupedal baboon to the nearly erect gibbon.
Some of the quadrupedal footprints which accompany those of birds are analogous to European Chirotheria, and with a similar disproportion between the hind and fore feet.
Quadrupedal with elephantine feet, short neck, very large head enlarged by an enormous bony frill covering the neck, with a pair of horns over the eyes and a single horn in front.
They were more or less completely quadrupedal instead of bipedal, with straight post-like limbs and short rounded hoofed feet adapted to support the weight of the massive body and heavy armature.
One is drawn in the conventional bipedal or standing posture while the other is in a quadrupedalpose or walking position, sustaining or balancing the fore part of the body on a muddy surface with its fore feet.
Quadrupedal dinosaurs with elephantine feet, short neck, small head, body and tail armored with massive bony plates and often with large bony spines.
But indeed the whole of the appointments and furniture of the house was adapted for beings who used the quadrupedal position.
The creature that we have here can do absolutely nothing with his toes and is uncomfortable in the quadrupedal position.
The child born into the world there naturally adopts the safe quadrupedal position and has the use of its toes.
Not one of them adopted or attempted to adopt the quadrupedal position.
It is also supplied with lungs, and two auricles and two ventricles to the heart; all of which bring it still closer into an alliance with the quadrupedal species of the animal kingdom.
Of thequadrupedal animals, the flesh of those that feed upon herbs is the most wholesome and nutritious for human food.
In the quadrupedal tracks, the front feet seem to have been smaller than the hind ones.
The only quadrupedal animals now known to us which walk on two legs are the Kangaroos.
The correspondence of these footprints with each other leaves no doubt that they were all by one kind of animal; for both the bipedal and the quadrupedal tracks have the same character.
But when man assumed the upright posture the femoral artery, which in the quadrupedal position is placed out of reach on the inner part of the thigh, became exposed.
In the quadrupedal position this necessary weak spot--a partial opening through the abdominal wall--was developed in that region which was highest from the point of view of gravity and least exposed to strain.
There was a dull thud, a quadrupedal humping, an undulation along the spine of that cow--and the stage-coach was out of sight.
Here are a dozen quadrupedal friends that can demonstrate the fact that they have something more than instinct.
This is proved not merely by the ordinary quadrupedal walk, but by the suspended motion of the sloth; the crawling of the child upon the ground, the erect walk of man; and the inverse limb movements of the ape tribe.
The gallop is the most rapid method of quadrupedal motion; in its action the feet are independently brought to the ground; the spring into the air as in the canter is effected from a fore foot, and the landing upon the diagonal hind foot.
As a rule the Platyrrhine Monkeys have the fore-limbs shorter than the hind-, and are more quadrupedal than those of the Old World.
In their mode of progression they are morequadrupedal than most of the other Lemuroids; they jump, walk, or run on all fours.
No question can possibly arise as to the immediate ancestor of the biped mammal; he undoubtedly arose from one of the dominant quadrupedal mammals.
In Europe thequadrupedal posture would seem to prevail among some of the South Slavs, notably the Dalmatians.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "quadrupedal" in a variety of sentences. We hope that you will now be able to make sentences using this word.
