couple of brachiosaurus altithorax and a flock of pterosaurs in a scenic late jurassic landscape

altithorax ancient animal apatosaurus big brachiosauridae brachiosaurus couple creature dino dinosaur diplodocus eon extinct flock gigantic group herbivore herbivorous herd history idyllic illustration jurassic lake landscape large late lizard monster nature neck pair paleoart paleontology prehistoric primitive pterosaurs reptile saurischia sauropod science species spectacular swarm vegetarian water