A newly discovered trove of fossilized footprints provides what may be the first evidence of prehistoric diversity in ...

But T. rex was also the last of its meat-tearing family. The earliest tyrannosaurs evolved about 166 million years ago. In ...

The other two lots that sold for seven figures and well above high estimates were dinosaur fossils: a "virtually complete" Skull of a Pachycephalosaurus (estimate of $800,00 – $1.2 million) and an ...