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.