Dinosaurs

Any of a number of bird-like lizards, often found on “lost world” planes (or dreaded jungle islands).

Allosaurus: Two-legged dinosaur, 15’ tall, with large jaws and dagger-like teeth.
Ankylosaurus: Four-legged, herbivorous dinosaur, 15’ long and 4’ tall (at the shoulder), with thick, bony armor and a massive, spiked-club-like tail.
Brontosaurus: Massive, four-legged, herbivorous dinosaur, 70’+ long and weighing 30+ tons, with a (relatively) small head, long neck, and powerful tapering tail.
Dimetrodon: Four-legged dinosaur, 10’ long, with a “sail” of bony spines and skin webbing on its back.
Plesiosaurus: Lake-dwelling dinosaur, 40’+ long, with a long neck, snake-like head, and 4 flippers.
Triceratops: Four-legged, herbivorous dinosaur, 40’ long and 12’ high (at the shoulder), with a protective bone crest and three long horns on its head.
Tyrannosaurus Rex: Two-legged dinosaur, 20’+ tall, with enormous jaws and small arms that preys on animal of human size or bigger.