Leaellynasaura is a genus of small herbivorous ornithischian dinosaur measuring 90 cm (3 feet) in length from the Albian stage of the Early Cretaceous, first discovered in Dinosaur Cove, Australia. The type species is Leaellynasaura amicagraphica. It was described in 1989, and named after Leaellyn Rich, the daughter of the palaeontologist couple Tom Rich and Patricia Vickers-Rich who discovered it.
Leaellynasaura never appears in the original novels or movies. It does appear, however, in the Topps comics.