Trike: The Matterhorn - the only place in Dino World where horns really matter.
Harry: You've never actually been to a horntist, have you?
Trike: Sure I have. Lots of times. In my dreams.
Harry: Trike, we know you're afraid of the horntist.
Trike: You don't understand. I've heard bad things about horntists.
Mom: Harry, there's no point in hiding. We're going to be late. This is important.
The events of this episode would seem to prove conclusively that the writers of the show are not interested in basing stories on the original Ian Whybrow Harry books. One of the books is titled Harry and the Dinosaurs Say "Raahh!", but this episode is nothing like that book. In the book, Harry's dinosaurs come with into the dentist's office. In this episode, Harry doesn't even get to the dentist until the very end and Mom says it would probably be best for Harry not to bring his dinosaurs in.