A team of researchers analyzed dinosaur print fossils and concluded that they belonged to large-bodied carnivorous dinosaurs that were up to three meters high at the hips and about 10 meters long, according to a press release from the University of Queensland.
“To put it in perspective, T. rex reached 3.25 meters in the hip and reached a length of 12 to 13 meters, but did not appear until 90 million years after the Queensland giants,” said lead researcher Anthony Romilio. paleontologist at the university.
“Queensland’s pieces were probably made by giant carnivores – the group that includes the Alosaurus. At the time, they were probably some of the largest predatory dinosaurs on the planet.”
The traces, dating from the late Jurassic period between 165 and 151 million years ago, were mostly between 50 and 60 centimeters long, Rommilio said, with some reaching almost 80 centimeters.
“These pieces were made by dinosaurs that walked through the swamp-forests that once occupied much of the landscape of southern Queensland,” he said.
Romilio points out that paleontologists used to know about rex Tyrannosaurus in North America, Giganotosaurus in South America and Spinosaurus in Africa, but now there is evidence that Australia had large carnivorous dinosaurs.
While the fossils were first scientifically described, they were discovered more than half a century ago, Romilio said.
“They were discovered at the top of the underground mines by Rosewood near Ipswich and Oakey just north of Toowoomba in the 1950s and 1960s,” he said, explaining that they had been sitting in museum drawers for decades.
The full research paper was published in the journal Historical Biology.
In 2017, researchers discovered the world’s largest dinosaur footprint in northwestern Australia.
With a length of about 5 feet 9 inches (1.75 meters), the piece belonged to a sandwich, a long neck plant.
The record was previously set at 1.15 meters (almost 3 feet 9 inches) found in Bolivia in July 2016, which was the largest of the carnivorous dinosaurs.