Rinkus and Sierra are a Rhamphorynchus and Cearadactylus duo in Pooh's Adventures of The Land Before Time VII: The Stone of Cold Fire. They were once sidekicks of Pterano until they betrayed him.

TriviaEdit

• Rinkus and Sierra will become the enemies of SpongeBob SquarePants, Mickey Mouse, and Bugs Bunny in SpongeBob's Adventures of The Land Before Time VII: The Stone of Cold Fire.
• Rinkus and Sierra will make their first guest appearance in a Land Before Time crossover film to get their revenge on Littlefoot and his friends in Littlefoot's Adventures of The Pebble and the Penguin.
• Rinkus and Sierra will get their revenge on Littlefoot and his friends again in Littlefoot's Adventures of Aladdin and the King of Thieves, Littlefoot's Adventures of Free Willy 3: The Rescue, and more.
• Rinkus and Sierra will become enemies to the FT Squad in The FT Squad's Adventures in The Land Before Time VII: The Stone of Cold Fire.