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Paleontologists uncover new species of dinosaur in Australia

Some experts believe the 45-foot-long herbivore trekked across Antarctica some 105 million years ago.

SCIENTISTS UNVEILED FOSSILS from a new species of giant dinosaur unearthed in northeast Australia.

At least 14 metres (45 feet) from head-to-tail, Savannasaurus elliottorum was a plant-chomping, barrel-chested member of the sauropod group, which includes the largest land animals to ever have roamed the planet.

The discovery, along with a specimen of another sauropod called Diamantinasaurus matildae, was detailed in the Nature Journal Scientific Reports.

Palaeontologists nicknamed the two dinos Wade and Matilda. Both species are thought to be unique to Australia.

How and when these and other dinosaurs made it Down Under is a source of ongoing debate, and the new find is sure to add fuel to the fire.

Some experts say they arrived far earlier than the 80-million Cretaceous period, which ended with a cataclysmic bang some 66 million years ago.

But the new find points to another scenario, said Stephen Poropat, a scientist at Uppsala University in Sweden and lead author of the study.

“We suggest that our sauropods evolved from South American ancestors,” he told AFP.


These would have crossed a land bridge onto Antarctica, skirted its edge, and then crossed another bridge to Australia.

World's Fair NYC The species could have looked similar to the brontosaurus. AP / Press Association Images AP / Press Association Images / Press Association Images

S. elliottorum was named for Australian paleontologist David Elliot, co-founder of the Australian Age of Dinosaurs Museum, which will house the new finds, and a co-author of the study.


Elliott stumbled across bone fragments jutting up from the ground in 2005 while herding sheep near his home by the Winton geological formation, site of many earlier discoveries.

“I was hoping it might be a meat-eating theropod dinosaur,” he recalled in a statement.

But Elliott quickly realised it was something else when his wife Judith, also a scientist, clicked two pieces of bone together and held up a complete toe-bone from a leaf-eating sauropod.

After a decade of work — painstakingly removing hard siltstone from a truckload of rock-encrusted bones — they revealed one of the most complete sauropod skeletons every found in Australia.

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