Field Trip to Dinosaur Valley (Field Trip Adventures Series)

In this wordless picture book, a class takes a yellow bus through time to the Jurassic era. Amid volcanoes and leaf-eating dinosaurs, one student pursues a kepodactylus that has taken their lunch box and becomes separated from the group. While waiting, the student shares lunch with friendly dinosaurs before a much larger carnivore appears. A rescue reunites the student with classmates at the bus.