Erma Eoraptor
S1:E47
2010
IMDb
Buddy, Tiny, and Mrs. Pteranodon go on an expedition all the way back to the Triassic Time Period to meet Erma Eoraptor, one the first species of dinosaur that ever lived. They ride to the end of the line to find Erma, and then bring her back for a ride on the Dinosaur Train!