Wildlife in the time of the dinosaurs.

In the time of the dinosaurs, life on earth was very different from life as it is today. On one of these two MIDI puzzles, you see dinosaurs that were so large that they ate leaves from the tops of large trees. You see a giganotosaurus and a tyrannosaurus rex that were brutal carnivorous dinosaurs. In one of the puzzles you see animals that lived by the coast and in the sea, like mosasaur which was a giant marine lizard.