alamosaurus herd walking near a forest of pine trees

alamosaurus sanjuanensis dinosaur animal herbivore reptile lizard sauropod armor armored longtailed longnecked themes creature north america cretaceous period era epoch age evolution extinct extinction quadruped prehistoric primeval primitive genus species titanosaur nature wild wildlife pteranodon longiceps pterosaur bird predator carnivore hunting mesozoic wing flying flight claws beak 3d rendering