When Don finds a mystery tooth in Dad's old tooth collection, Dad decides to take the kids on an investigation. / Tiny gets upset when she finds a miniature mammal named Cindy Cimolestes has moved ...

The kids ride the Dinosaur Train from one end of the line to the other, through all three Time Periods — from the Cretaceous, through the Jurassic, to the Triassic. / The Pteranodon family rides to ...