The Ornithomimus dinosaur is a Saurischian.
Velociraptor was a saurischian as were all theropods.
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.
Neither. Pterodactyl was a pterosaur, not a dinosaur.
It is a Saurischia, Theropoda, Deinonychuosauria, Dromaeosauridae.
T.Rex is a theropod and therefore a saurischian ("lizard hipped") dinosaur.
A saurischian is a "lizard hipped" dinosaur, and all theropods and sauropods are saurischians. Spinosaurus was a theropod, and was thus a saurischian.
The Ankylosaurus reproduces eggs.
Yes, gargoyleosaurus is an ankylosaurus.
Ankylosaurus is a plant eater.
Ankylosaurus was a plant eater.