What is "ornithischian"

Usage examples of "ornithischian".

Among the ornithischians are one species each of ankylosaur, nodosaur, and hysilophodont, two species of hadrosaur, and three species each of ceratopsian and pachycephalosaur.

Characteristic of ornithischians are, among other skeletal features, the presence of ossified tendons along the vertebral column and the presence of at least five sacral vertebrae in contact with the pelvis.

This type of tooth is characteristic of ornithischian dinosaurs, and is not found in either herrerasaurids or saurischian dinosaurs.

Staurikosaums is neither a saurischian nor an ornithischian, but is an earlier, more primitive kind of dinosaur.

Unlike the sauropods, which are saurischian, or reptile-hipped dinosaurs, stegosaurs were ornithischian, or bird-hipped dinosaurs.

That is, they belong to a family of dinosaurs that existed before the dinosaurs split into saurischians and ornithischians.

These names refer to the morphology of the hip joint and ostentation of the pubis bone, which is more typically reptile-like in saurischians and is superficially like that of a bird in ornithischians.

In addition, sauropod teeth are arranged differently than those of ornithischians by being along the margins of the palate and jaw.

In ornithischians, the pubis points backward beneath the hip (as it does in modern birds).

Another, more excusable error (given the paucity of specimens at the time) was that dinosaurs constitute not one but two orders of reptiles: the bird-hipped ornithischians and the lizard-hipped saurischians.

The ponderous ornithischians could not thrive in steep mountains dry deserts or icy wastes, and were restricted by the violence of the landscape.