Dinosaur Train - Season 1 - Eps 71: 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. At first Buddy is not enthusiastic about travelling underwater, but quickly becomes a convert when he sees the spectacular sights under the sea.
About Dinosaur Train

Title: Dinosaur Train
First Air Date: 2009-09-07
Last Air Date: 2019-11-18
Status: Returning Series
Rating: 6.2/10 (from 37 votes)
Language: EN
Seasons: 6
Total Episodes: 200
Network: PBS Kids
Genres: Animation, Kids
Production Companies: The Jim Henson Company
Synopsis
Join Buddy, a Tyrannosaurus Rex, and his adoptive Pteranodon family on a whimsical voyage through prehistoric jungles, swamps, volcanoes and oceans, as they unearth basic concepts in life science, natural history and paleontology.