FOSSILS OF DINOSAURS THAT LIVED 140 MILLION YEARS AGO FOUND IN ARGENTINA

Tue 02 March 2021:

A colossal dinosaur dug up in Argentina could be the oldest titanosaur ever found, having roamed what is now Patagonia some 140 million years ago at the beginning of the Cretaceous period, scientists said Sunday.

Researchers said the fossils represent a dinosaur species named Ninjatitan zapatai that lived 140 million years ago during the Cretaceous Period. They identified Ninjatitan as a titanosaur, a group of long-necked plant-eating dinosaurs that walked on four pillar-like legs.

At a length of about 65 feet (20 meters), Ninjatitan was a large dinosaur, but much smaller than later titanosaurs such as Argentinosaurus that reached a length of around 115 feet (35 meters). The researchers also said the presence of such an early titanosaur in Patagonia supports the idea that titanosaurs originated in the Southern Hemisphere.

The findings were published in the scientific journal Ameghiniana.

“It is the oldest record known, not only from Argentina but worldwide,” study lead author Pablo Gallina, a researcher at the National Council for Scientific and Technical Research of Argentina (CONICET), told Reuters. “Titanosaurs are recorded on various sides of the world, but the oldest-known records were more modern than this find.”