Haunted Roundhouse
S2:E21
2011
IMDb
Dad takes the kids on a special Night Train to Troodon Town, where the Troodons have decorated their Roundhouse into a “haunted house” for a spooky party. The kids end up meeting a strange new nocturnal creature – a mammal named Vlad Volaticotherium, who was hiding in the roundhouse trying to get some sleep.