Not quite the star of Jurassic Park, but with a body length of about 8 metres and a strict plant-based diet, Altirhinus was still a formidable presence. Weighing in at 1.1 tonnes, it had a distinctive frame, walking on two but could go on all fours, especially when feeding.

These gentle giants were early Iguanodonts, ancestors to the more famous duck-billed dinosaurs. Their most striking feature was their arched snouts, giving them a unique profile among their peers.

Initially mistaken for another dinosaur, it wasn't until 1998 that British paleontologist David B. Norman gave Altirhinus its rightful name. The species’ fossils, mainly found in Mongolia, give us a peek into an ancient world where being a big-nosed, leaf-eating behemoth was all the rage.