Read the following passage and try the quick exercise below it.
Hell Creek is heaven for paleontologists. The Montanan wildlife refuge is rife with clay and stones that hold clues to our prehistoric past. It was in Hell Creek that researchers from the University of Kansas recently stumbled on the remains of a young Tyrannosaurus rex—they think.
Fossils from various periods have been found there, and this isn't the first T. rex fossil to be found, but University of Kansas scientists think it could be one of the most intact. The entire fossil remains of the upper part of the dinosaur's jaw, with all its teeth, was found. Paleontologists dug up parts of a skull, foot, hips, and backbones. If the remains do in fact belong to a T. rex, that would make them around 66 million years old. Adding to the rarity of the find is the fact that the fossils may belong to a juvenile.
Further work will determine whether the team actually has a T. rex on their hands, or possibly a Nanotyrannus, a tiny genus of tyrannosaur that's a matter of scientific debate. Many paleontologists think that so-called Nanotyrannus fossils are actually juvenile T. rex specimens.
Are the following statements true, false or not given?
- Researchers have discovered a new fossil in Hell Creek, Montana.
- It is thought that the unearthed bones belong to a mature Tyrannosaurus rex.
- Some paleontologists doubt whether the Nanotyrannus actually existed.