Rocky and Dusty, voiced by Nika Futterman (Rocky) and Ashley Rose Orr (Dusty), are twin Tinysauruses who first appears in The Land Before Time XI: Invasion of the Tinysauruses. Rocky is a male and Dusty is a female. They usually speak in fragments, with one starting a sentence, and the other finishing it. Rocky is most often the beginner of the sentence, while Dusty usually finishes what her brother says. When Skitter is introducing Littlefoot to Rocky and Dusty, he confuses them with each other at first.