The discovery of a 17-foot xiphactinus (a predatory fish ... whose teeth are among the most common fossils found in the region today. Species like Cretoxyrhina (the “Ginsu shark”) and Squalicorax (the ...

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 ...

Greg Peterson, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons ...