The Jurassic period is known for the appearance on earth of what?
Non-avian dinosaur Ornithoscelida Dinosauria The death of the dinosaurs Pachypodes Non-avian dinosaurs Dinosaurian Dinosaurs Dinasour Triassic dinosaurs Phytodinosaur Dinosur Dinosuar Dinosaurology Discovery of dinosaurs Pachypodosauria Pandinosauria The Death of the Dinosaurs Dinosaur Jurassic dinosaurs Dinosoor Dinosor Herbivore dinosaurs Death of the dinosaurs Dinosour Phytodinosauria