These tracks, which are between 127 and 144 million years old, represent the only fossil evidence from the early Cretaceous and are some of the oldest dinosaur remains in Australia, he said. For some tracks, the scientists also made casts out of flexible silicon, which can later be used to produce museum replicas of the prints.Īccording to Salisbury, most other Australian dinosaur fossils come from the continent's eastern side and date back to the mid-Cretaceous, about 90 to 115 million years ago. Each one was measured with three-dimensional photogrammetry, a technique used to build a 3-D reconstruction of an object by taking photographs from a variety of angles. Working alongside the Goolarabooloo, who are considered the region's 'traditional custodians,' Salisbury and his colleagues spent 400 hours investigating the markings. And it's written in stone Steve Salisbury Simply put, this means we are going to award the title of the world’s largest dinosaur ever to the dinosaur with the greatest reasonable estimate for size. It's the Cretaceous equivalent of the Serengeti. Steve Salisbury with his right foot on one of several horizontally emplaced sauropod tracks (UQL-DP9-10) that traverse a gently sloping surface. Examples of tracksites preserving evidence of dinosaurs that have had to negotiate the gently undulating topography of LFA-1 and LFA-2.

Biggest dinosaur Steve