Mail Online reported that a new dinosaur has been discovered in South Africa named the ‘Earth Claw’.
The discovery of the Aardonyx celestae can be seen as a breakthrough in how we understand dinosaurs and how they began to walk – and also the reasons in which they grew so big,

Researchers believe the near-perfect skeleton bridges the gap between the earliest two-legged specimens and those who later walked on four limbs.
Walking on four limbs allowed the dinosaurs to support more weight and grow bigger – often their best defence against predators, especially for herbivores like the diplodocus or the brontosaurus.
The fossil reveals a dinosaur with strong back legs and two stumpy front arms that are understood to have gradually grown with evolution.
The seven-metre long vegetarian lived around 200 million years ago.
Dr Adam Yates, whose team made the dig at a game farm near Senekal in the northern Free State, said: ‘This find is hugely significant because we see how the dinosaur developed.
‘Aardonyx probably walked on its hind legs but could drop onto all fours as well.

‘It had flattened feet with large claws that supported body weight on the inside of the foot and a robust thigh bone for supporting weight.
‘The form here is remarkably complete and also includes the head. It shows us that four-legged dinosaurs were on earth a lot earlier than previously thought.

‘The fossil shows the dinosaur’s bracing joints in the back vertebrae made the backbone rigid enough to support great weight. It also had a forearm and hand capable of grasping and supporting weight.

‘It had short, broad feet and a big gut so it was obviously a bulk plant-eater. The wide jaw gape shows how it could stuff a huge amount of food.’
Dr Yates, 38, an expert at the University of Witwatersrand in Johannesburg, added ‘celestae’ to the dinosaur’s name as a tribute to his wife Celeste, who helped on the project.

Source: http://www.dailymail.co.uk/sciencetech/article-1227161/New-dinosaur-discovered-South-Africa–sheds-new-light-grew-big.html