Dinosaur Types Two main types of dinosaurs Saurischia

Dinosaur Types!

Two main types of dinosaurs: • Saurischia: (sore-is-che-a) • Both carnivores and herbivores. • Ornithischia: (or-nith-is-che-a) • Only herbivores.

Saurischia: lizard-hipped • Large lizard like pelvises and clawed feet. • Both carnivores and herbivores. • Divided into 2 sub-orders: 1. Theropods: (there-o-pods) 2. Sauropods: (saur-o-pods)

Theropods: (breast-footed) • Carnivores (meat eaters) • Sharp slicing teeth & clawed hands. • Fast and agile. • Strong legs with 3 toed, clawed feet. • Bipedal walk. (walked on 2 feet)

Sauropods: (lizard footed forms) • Herbivores. (plant eaters) • Small heads and brains. • Usually walked on 4 legs. • Slow moving. • Largest land animals ever!

Ornithischia: (bird hipped) • Hips similar to modern birds & hoofed toes. • Only herbivores. • Four different types: 1. Ornithopoda 2. Thyreophora 3. Pachycephalosauria 4. Certopsia

• Ornithopoda: (or-nith-o-poda) • Bird-footed with 2 legs. • No armor on body & spiked hands. • Pachycephalosauria: (packy-cep-halo-sore-e-a) • Walked on 2 legs. • Huge bony skull.

• Thyreophora: (thigh-re-o-for-a) • Walked on 4 legs. • Had an armor plated body. • Certopsia: (sir-top-c-a) • Walked on 4 legs. • Had beaks & horns on face.

• There were other types of dinosaurs: • Pterosaurs: (ter-o-saurs) • Flying bird-like reptiles. • Ichthyosaurs: (I-cathy-o-saurs) • Plesiosaurs: (ples-e-o-saurs) • Sea reptiles.

• For more information on different dinosaur species and characteristics visit the following web sites. Walking with Dinosaurs: http: //www. bbc. co. uk/dinosaurs/fact_files/index. shtml The Natural History Museum: Dino Directory: http: //flood. nhm. ac. uk/cgi-bin/dino/ Dinodictionary. com: http: //www. dinodictionary. com/dinos_a. asp Dino Base: To access site, select “Dino base”. http: //www. proteacher. com/110055. shtml Zoom Dinosaurs. com: http: //www. zoomschool. com/subjects/dinosaurs/index. html