Maiasaura

From Jurassic Park wiki

Maiasaura, a Hadrosaur famous as a "good mother lizard", lived in North America about 75 million years ago, probably the direct ancestor of the Hadrosaur Edmontosaurus.

[edit] In Jurassic Park

Maiasaura can be seen in both Jurassic Park novels, very docile as it would probably usually be in real life. Maiasaura did not, however, have motion-sensitive eyesight like it does in the novels. They do not appear in any of the three Jurassic Park films, and some of their actions were transferred to the Parasaurolophus.