Different kinds of Dinosaurs

• Two main groups:– Saurischia

(reptile-hipped)– Ornithischia

(bird-hipped)

Left: Tyrannosaurus pelvis showing saurischian structure

Above: Edmontosaurus pelvis showing ornithischian structure

Saurischia: Theropods

• Two-legged meat eaters

• Evolved into birds!

• HUGE four-legged plant eaters with long necks and tails

Saurischia: Sauropodomorphs

Ornithischia: Ornithopods• Two or four-legged

plant eaters

cc. Arthur Weasley

Ornithischia: Ceratopsians, Ankylosaurs and Stegosaurs

• Four-legged plant eaters with pointy, knobbly bits!

• In Mesozoic skies– Pterosaurs (Flying reptiles)

Other animals in Mesozoic times…

cc. Arthur Weasley

Other animals in Mesozoic times…• In Mesozoic seas

– Ichthyosaurs, Plesiosaurs, Mosasaurs

cc. Fritz Geller-Grimm

cc. Arthur Weasley

cc. Arthur Weasley

• Small Mammals

Other animals in Mesozoic times…