T. rex fossil unearthed decades ago is older, more primitive relative of iconic dinosaur, scientists say
CBSN
The Tyrannosaurus rex seemingly came out of nowhere tens of millions of years ago, with its monstrous teeth and powerful jaws dominating the end of the age of the dinosaurs.
How it came to be is among the many mysteries that paleontologists have long tried to solve. Researchers from several universities and the New Mexico Museum of Natural History and Science say they now have one more piece of the puzzle.
On Thursday, they unveiled fossil evidence and published their findings in the journal Scientific Reports. Their study identifies a new subspecies of tyrannosaur thought to be an older and more primitive relative of the well-known T. rex.

Washington — Amid Trump administration demands for Tehran to keep the free flow of commerce in the Strait of Hormuz, U.S. officials have told CBS News that there are at least a dozen underwater mines through the vital passageway, according to current American intelligence assessments. Arden Farhi, Kathryn Watson, Caroline Linton, Aimee Picchi and Layla Ferris contributed to this report.

Washington — President Trump said early Monday that he is postponing airstrikes on Iran's power plants after "very good and productive conversations" over the last two days about reopening the Strait of Hormuz. However, Iran's foreign ministry denied any such talks. Claire Day contributed to this report. In:











