Fisher Price Imaginext Lost Creatures Playset.
From the Manufacturer
Humans have landed on the Island of Lost Creatures. The playset is the home for the humans to protect themselves against all of the Lost Creatures. A brontosaurus skeleton protects the habitat and the two figures with its moveable head, stomping foot action, and a boulder throwing tail. You can even roll the boulder through it's skeleton.
Fisher Price Imaginext Lost Creatures Playset - B00284CAX6