Sentences with phrase «ornithischians included»

On the other side of the divide, «bird - hipped» ornithischians included beaked plant - eaters such as Triceratops.

Not exact matches

Now it seems the second group, the ornithischians, which includes Triceratops and Stegosaurus, also had feathers.

Their data set had many more ornithischians — the group that includes Stegosaurus and Triceratops — than other such analyses; one of the conclusions of that study was that theropods and ornithischians were more closely related than once thought.

A November 2017 analysis upheld the traditional view but found that other arrangements are almost equally likely — including a view that clusters herbivorous ornithischians and sauropods together.

So the researchers decided to see how different the family tree would look if an analysis included many more ornithischian species.

If these bristly structures represented early feathers, as researchers have increasingly come to think, it would mean that feathers evolved in dinosaurs that preceded the evolutionary split between so - called saurischians (which include the meat - eating species) and ornithischians (which comprise plant - eating species) more than 200 million years ago.

In Baron's redrawn dinosaur family tree, the saurischians now only include the sauropodomorphs, and the theropods were grouped with ornithischians to form a new classification named ornithoscelidans.

A second line of so - called bird - hipped, or ornithischian dinosaurs, led to a widely differing group of animals that included the stegosaurs and duckbilled dinosaurs.