According to ABC News, fossilised dinosaur footprints about 230 million years old have been identified in Brisbane sandstone from Petrie’s Quarry, the sour. University of Queensland palaeontologist Dr Anthony Romilio examined two separate pieces of Brisbane-mined sandstone given to the university’s Dinosaur Lab. He said the marks appear to be tracks from a sauropodomorph, an ancient long-necked, long-tailed dinosaur that walked on its back legs.