Parasaurolophus
A herbivorous hadrosaur native to North America in the Late Cretaceous roughly the size of an African bush elephant that dined on pine needles, twigs, algae, and other plants and was dined on by other dinosaurs such as daspletosaurus and tyrannosaurus.
“THOSE CRESTS ON THEIR HEADS AMPLIFY THEIR SOUNDS TO MAKE THEM LOUDER. THAT’S REALLY INTERESTING. GOOD THING THEY’RE HERBIVORES LIKE MY PAL GEORGE HERE” - S1E12