S1·E71 Elmer Elasmosaurus
Aired September 28, 2010
Synopsis
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. At first Buddy is not enthusiastic about travelling underwater, but quickly becomes a convert when he sees the spectacular sights under the sea.