The first bones from this dinosaur were picked up in the Sahara Desert in what is now Niger by French paleontologists in the 1950s.

Then in the late 1990s, Paul Sereno, a paleontologist at the University of Chicago, and his colleagues discovered the bulk of the dino's bones, including its skull.

Recent analyses, including X-ray scans of the fossil bones, revealed it to be an odd-looking behemoth dubbed Nigersaurus taqueti, capable of growing new needle-shaped teeth over and over when old ones fell out.

"Among dinosaurs," Sereno said, "Nigersaurus sets the Guinness record for tooth replacement."

A study of the dinosaur is detailed in the Nov. 21 online issue of the journal PLoS ONE.

Recent analyses, including X-ray scans of the fossil bones, revealed it to be an odd-looking behemoth dubbed Nigersaurus taqueti, capable of growing new needle-shaped teeth over and over when old ones fell out.

"Among dinosaurs," Sereno said, "Nigersaurus sets the Guinness record for tooth replacement."

A study of the dinosaur is detailed in the Nov. 21 online issue of the journal PLoS ONE.

Jeanna Bryner : Foxnews.com