Dinosaurs are divided into two groups based on their hip structure: the Order Ornithischia and the Order Saurischia. The Saurischian dinosaurs which belong to the order Saurischia are thought to be the ancestors of what are birds in the modern animal kingdom. These ancient dinosaurs had a hip structure similar to that of modern-day lizards. Saurischian skulls also have large, pronounced openings between the eye socket and the nostrils.
The Saurischians dinosaurs are divided into two distinct groups the sauropodomorpha which consist of four-legged dinosaurs that were herbivores which means they ate only plants and vegetation and the second group called theropods which were two-legged carnivores, meaning they only ate meat (usually the herbivores, and sometimes other smaller carnivores).
Characteristics of Sauropodomorpha Dinosaurs:
The Saurischian dinosaurs have a set of unique features, which causes them to be put into this group. The following are the basic characteristics of a Saurischian dinosaur; the largest land animals ever.
1. Plant eaters (herbivores)
2. Small heads with spatulate or pencil-shaped teeth for ripping plants
3. Usually walked on four legs, but could extend onto two in order to reach tall foliage
What Dinosaurs were Sauropodomorpha?
Below is a list of dinosaurs that were Sauropodomorpha Dinosaurs.
Characteristics of the Theropods Dinosaurs
The Theropod dinosaurs also had a set of unique features, which causes them to be put into this group. The following are the basic characteristics of the Theropod dinosaur:
1. Fast and agile for hunting and catching prey
2. Carnivorous diet eating other small dinosaurs
3. Sharp, slicing teeth or beak, and well-developed jaw muscles for chewing dense meat and ripping the flesh off of its prey
4. Clawed hands for tearing its meals
5. Bipedal walk
6. Strong legs with bird-like, clawed feet for holding its prey
7. Large eyes which gave it good eye site for spotting prey.
What Dinosaurs were Theropods?
Below is a list of Dinosaurs that were Theropods: