stegosaurus dinosaur plastic toy animal on a blue background

stegosaurus dinosaur prehistoric herbivore jurassic north america armored plated spiked tail quadrupedal large bony plates spines bone herbivorous teeth jaws beak planteater thyreophoran stegosaurid vertebrate extinct fossil excavation discovery paleontology morphology anatomy evolution paleoecology behavior locomotion reproduction growth development taxonomy classification scientific name research skeleton distinctive tracks ecosystem thagomizer stenops ancient reptile natural history diet animals plastic toy animal isolated blue background background