Washington, (Agencies): If scientists are to be believed than they have traced the fossils of the bear that might have stood at 11 feet tall the largest ever known. It is said that it lived between two million to 500,000 years ago.

Scientists who examined the remains believe they are of a South American giant short-faced bear, called Arctotherium angustidens, the earliest and largest member of its genus.

The fossils of the most powerful land carnivore of its time were unearthed during the construction of a hospital in La Plata City, Argentina.

According to them, the titan, lived between 2 million to 500,000 years ago, with its closest living relative being the spectacled bear (Tremarctos ornatus) of South America, LiveScience reported.

The measurements of the fossil's leg bones and equations used to estimate body mass, the researchers said the bear would have stood at least 11 feet (3.3 meters) tall on its hind legs and would have weighed between 3,500 and 3,855 pounds (1,588 and 1,749 kg).

Leopoldo Soibelzon, a paleontologist at the La Plata Museum said, “In comparision, the largest record for a living bear is a male polar bear that obtained the weight of about 2,200 pounds (1,000 kg)."

Although this bear probably had an omnivorous diet, flesh likely dominated. Megafauna or large creatures likely played an important role in what it ate, they said.

The research team's analysis of the bear's bones suggested that it was an old male that survived a number of serious injuries during life. These might have come from battles with other males, while hunting megafauna, or during fights with other carnivores over a carcass.

According to the researchers, when the bears arrived in South America some 2.6 million years ago, there were few other large predators at the time. Taking advantage of the large amount of prey, the species grew hugely and eventually became extinct after more carnivores evolved in South America, they said.

The new findings were published in the Journal of Paleontology.