April 14, 2020 Did You Know? Apatosaurus were part of a species called sauropods – dinosaurs that were herbivores [eats grass] with long necks, long tails, big feet and a small head. More Ideas on Dinosaurs Pteranodon Brachiosaurus Plesiosaurus Dimetrodon Pterodactyl Triceratops Spinosaurus Stegosaurus