Macrogryphosaurus ("big enigmatic lizard") is a genus of early iguanodont dinosaur from the Late Cretaceous of Argentina. It was one of the most common herbivores in its ecosystem, and thus was prey for several large predators, including Giganotosaurus. As a member of the iguanodontid family, it was capable of moving on both two legs and four.
In The Land Before Time
An olive Macrogryphosaurus makes a brief cameo at the end of The Land Before Time XI: Invasion of the Tinysauruses, where it is among the crowd of dinosaurs watching the treesweet tree in bloom.