Paleontologists uncover remains of a 33-FOOT long megaraptor that lived 70 million years ago and would have been one of the last carnivorous dinosaurs to roam the Earth

• Paleontologists found fossils of a megaraptor that lived 70 million years ago
• The team believes it was one of the last  carnivorous dinosaur to roam the Earth
• They found vertebrae, ribs and part of the dinosaur's chest and shoulder girdle 
• This massive creature had long, muscular arms with giant claws at the end 

Paleontologists have uncovered the remains of megaraptor that lived 70 million years ago, making it one of the last carnivorous dinosaur to roam the Earth.

Discovered in Argentina, the team found vertebrae, ribs and part of what would have been the dinosaur's chest and shoulder girdle.

After a further analysis, they determined the creature was approximately 33 feet in length -the largest megaraptor found to date.

Unlike the Tyrannosaurus rex, this lethal dinosaur had extremely long, muscular arms with massive claws at the end that were used to attack prey. 

Paleontologists have uncovered the remains of megaraptor that lived 70 million years ago, making it one of the last carnivorous dinosaur to roam the Earth

When the megaraptor was first described in 1997, it was thought to be a relative of the viscous velociraptor, but has since been disputed - scientists have uncovered evidence that shows the claw was from the thumb and not the foot like the smaller dinosaur

The fossils were found in the southern province of Santa Cruz during a month-long dig in Estancia La Anita, which contains Cretaceous-era deposits.

The excavation team was led by Fernando Novas from the Natural Sciences Museum in Buenos Aires.

This is the moment, 65 million years ago, when the extinction of the dinosaurs occurs, and this new megaraptor that we now have to study would be one of the last representatives of this group,' Novas told Reuters.

The team used a range of techniques to pull the remains from the dusty ground, including a chain saw to free one large bone and hammers to chisel away debris. 

Discovered in Argentina, the team found vertebrae, ribs and part of what would have been the dinosaur's chest and shoulder girdle. After a further analysis, they determined the creature was approximately 33 feet in length -the largest megaraptor found to date

Novas noted that 'this new megaraptor that we now have to study would be one of the last representatives of this group' before the dinosaurs became extinct.

The megaraptor, although smaller in size compared to the Tyrannosaurus rex, had long, muscular arms that it used to attack and hunt with -it was also slimmer and more agile.

It had massive claws that stretched nearly 15 inches, allowing it to easily grab other creatures.

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This new megaraptor that we now have to study would be one of the last representatives of this group' before the dinosaurs became extinct, the researchers said

The megaraptor, although smaller in size compared to the Tyrannosaurus rex, had long, muscular arms that it used to attack and hunt with -it was also slimmer and more agile

With its enormous muscles and wide ranges of movements, the team determined that the arms were this megaraptors main weapon and not its jaws like many other predators such as the famous Velociraptor

With its enormous muscles and wide ranges of movements, the team determined that the arms were this megaraptors main weapon and not its  jaws like many other predators such as the famous Velociraptor.

However, when the megaraptor was first described in 1997, it was thought to be a relative of the viscous velociraptor, but has since been disputed - scientists have uncovered evidence that shows the claw was from the thumb and not the foot like the smaller dinosaur.

'Its neck was long. Its skull was low, thin and long. It had teeth which were not too big, different from those of the Tyrannosaurus or the Giganotosaurus. These were small teeth,' Novas said.

'Nevertheless, its jaw was armed with these teeth that allowed him to tear into the skin of its prey.' 

Philip Currie from the University of Alberta and his team were also part of the excavation.

'This is a super-cool specimen from a very enigmatic family of big dinosaurs,' said Currie, University of Alberta professor and Canada Research Chair in Paleobiology. 'Because we have most of the skeleton in a single entity, it really helps consolidate their relationships to other animals.'  

HOW THE DINOSAURS WENT EXTINCT AROUND 66 MILLION YEARS AGO

Dinosaurs ruled and dominated Earth around 66 million years ago, before they suddenly went extinct. 

The Cretaceous-Tertiary extinction event is the name given to this mass extinction.

It was believed for many years that the changing climate destroyed the food chain of the huge reptiles. 

In the 1980s, paleontologists discovered a layer of iridium.

This is an element that is rare on Earth but is found  in vast quantities in space.  

When this was dated, it coincided precisely with when the dinosaurs disappeared from the fossil record. 

A decade later, scientists uncovered the massive Chicxulub Crater at the tip of Mexico’s Yucatán Peninsula, which dates to the period in question. 

Scientific consensus now says that these two factors are linked and they were both probably caused by an enormous asteroid crashing to Earth.

With the projected size and impact velocity, the collision would have caused an enormous shock-wave and likely triggered seismic activity. 

The fallout would have created plumes of ash that likely covered all of the planet and made it impossible for dinosaurs to survive. 

Other animals and plant species had a shorter time-span between generations which allowed them to survive.

There are several other theories as to what caused the demise of the famous animals. 

One early theory was that small mammals ate dinosaur eggs and another proposes that toxic angiosperms (flowering plants) killed them off.