Muttaburrasaurus is a genus of dinosaur belonging to the ornithopod group. It lived during the Early Cretaceous period, approximately 112 to 99 million years ago, in what is now Australia. The first fossils of Muttaburrasaurus were discovered in the 1960s in the town of Muttaburra, Queensland, after which the dinosaur was named. Since then, additional findings have provided paleontologists with valuable insights into this captivating dinosaur.

Muttaburrasaurus was a large ornithopod that stood about 16 feet or 5 metres high. This dinosaur probably walked on all fours for most of the time but it could also stand on its hind legs to reach into tree branches. It´s most distinct feature was a well developed bump on the snout, which it is thought may have housed an acoustic organ for calling to other dinosaurs.

Muttaburrasaurus had large areas of jaw muscle attachments, which greatly enchanced its chewing ability. This feature, coupled with teeth that were suitable for shearing rather than grinding food, has led some to belive that it may have eaten meat from time to time.

Early reconstructions of muttaburrasaurus were modeled after iguanadon, with a thumb spike. Scientists now belive that this dinosaur was not closely related to iguanadontids, but have belonged to a family tree of its own. These dinosaurs habited the polar forrests of Victoria and New South Wales in the early Cretaceous.