lizard like hips
Saurischians
Saurischians.
Ornithischians with a hip structure similar to that of present day birds.
Saurischians are a group of dinosaurs characterized by their lizard-like hip structure, where the pubis bone points forward. This group includes the theropods, which are the bipedal carnivorous dinosaurs like Tyrannosaurus rex, as well as the sauropodomorphs, which are the long-necked herbivorous dinosaurs like Brachiosaurus.
A saurischian is a "lizard hipped" dinosaur, and all theropods and sauropods are saurischians. Spinosaurus was a theropod, and was thus a saurischian.
Dinosaurs are divided into two main groups based on their hip structure: Saurischians and Ornithiscians. Saurischia means "lizard hipped" and Ornithischia means "bird hipped". Saurischian hips had the pubis pointing forward and the ischium pointing backward. All the carnivorous dinosaurs (the theropods) and sauropods were saurischians. Ornithischian hips had the pubis pointing backward and parallel to the ischium. They include all the other dinosaur groups such as the ceratopsians and the ornithopods. Ironically, birds do not descend from this type of dinosaur. Instead, they are descended from the theropods, who were saurischians.
Troodon is a saurischian. Saurischians include the theropoda (animals like Troodon, Tyrannosaurus, Allosaurus, Therizinosaurus and Birds) and the sauropodomorpha (animals like Plateosaurus, Diplodicus and Brachiosaurus.) Ornithischians inlcude Triceratops, Stegosaurus, Ankylosaurus, Pachycephalosaurus and Parasaurolophus.
Albertosaurus, Allosaurus, Ankylosaurus, Aptosaurus, Archaeopteryx, Brachiosaurus, Compsognathus, Dienonychus, Diplodocus, Giganotosaurus, Hadrosaurus, Iguanodon, Kinetosaurus, Lambeosaurus, Maiasaurus, Megalosaurus, Nodosaurus, Ouranosaurus, Plesiosaurus, Protoceratops, Pteranodons, Spinosaurus, Stegosaurus, Triceratops, Tyrannosaurus, Velociraptors and loads, loads more! By Paige Louise Marriott. Age 10.
There are two main groups of dinosaurs. They are the bird hipped (ornithischians) and the lizard hipped (saurischian) dinosaurs. Saurischians are divided into the theropods and the sauropodomorphs. Ornithischians are divided into the Cerapoda, Heterodontosaurids, Lesothosauridae, Pisanosauridae, and Thyreophora.t-rex, ,ankylosaurus, anchisaurus, allosaurus, anchsaurus, apotosaurus, brontosaurus,brachiosaurus, ceolosaurus, corythosaurus and much more!
The two orders of the Superorder Dinosauria are Saurischia and Ornithischia, meaning the lizard-like pelvic girdle and the bird-like pelvic girdle. The classification is a little strange in that the birds are almost certainly descended from the Saurischia.
The two major groups of dinosaurs are the saurischians and ornithischians. Saurischian dinosaurs include theropods like T. rex and sauropods like Brachiosaurus, characterized by their hip structure. Ornithischian dinosaurs include species like Triceratops and Stegosaurus, known for their distinctive beaks and herbivorous diets.
Saurischian dinosaurs are characterized by their hip structure, which features a pubis bone that points downward and forward, resembling that of modern reptiles. This group includes two main subcategories: theropods, which are primarily bipedal and include birds as their descendants, and sauropodomorphs, which are primarily large, long-necked herbivores. Saurischians are known for their diverse body sizes and adaptations, ranging from small, agile predators to massive, slow-moving giants.