Scientists discover giant dinosaur fossils in Argentina

And scientists in Argentina have announced the biggest discovery ever made in the field of paleontology. Literally the biggest. Bones of a dinosaur were discovered that are believed to be the largest creature ever to walk the earth. Joe Wagner takes its measure. To get a sense of how big the titanosaur was you have to look at its thigh bone next to this scientist. Diego Pol was one of the lead paleontologists on the dig where they began uncovering the fossilized remains of this new species of titanosaur last January in Argentina. We spoke to him via Skype. We are really really excited about this discovery. Pol says the titanosaurs roamed the earth about 90 million years ago. Standing with its long neck up the dinosaur would go head to head with a seven-story building and weigh 77 tons. That's equal to about 14 adult elephants. And now we have discovered over 200 bones of a completely new species and therefore we will be able to study how these animals grew, how these animals moved on earth. The fossils were first discovered by a local farmer in 2012. The new species still doesn't have a name but it will likely honor the area in which it was found and of course the size of the dinosaur. Jill Wagner, CBS News, New York.