Elmer Elasmosaurus :The Pteranodon family travels on the Dinosaur Train with the Aquacar to an underwater train station to transport Elmer Elasmosaurus back to his home in the ocean. Carla Cretoxyrhina: On this underwater excursion, the Pteranodon family meets up with Carla Cretoxyrhina, a young shark who turns out to be much nicer than her reputation suggests. The Amazing Michelinoceras Brothers: The Pteranodon family travels deep underwater on the Dinosaur Train to view two backwards-bounding brothers named Max and Mitch Michelinoceras. Paulie Pliosaurus: The Pteranodon family takes the Dinosaur Train underwater to visit a marine reptile called Paulie Pliosaurus, a creature known as the "T. rex of the Ocean." Elmer Visits the Desert: Our Pteranodon family takes their ocean friend Elmer Elasmosaurus on the Dinosaur Train to a place he's never been before: the desert! Shiny's Sea Shells: Shiny, with help from Buddy, Tiny and Don, looks for the shiniest sea shells she can find, but ends up making a new friend named Henry, a hermit crab. Jess Hesperornis: The Pteranodons venture to the Big Pond to find out if dinosaurs can live in the water. The Old Spinosaurus and the Sea: Dad takes the kids on the Dinosaur Train to fish in a new place, where they meet a huge, grumpy old dinosaur, called a Spinosaurus, that doesn't want the kids in his sea.