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Fossils of oldest member of huge dinosaur group found in Argentina - Yahoo News

Fossils of oldest member of huge dinosaur group found in Argentina - Yahoo News

Fossils of oldest member of huge dinosaur group found in Argentina - Yahoo News
Mar 01, 2021 2 mins, 6 secs

BUENOS AIRES (Reuters) - Scientists have unearthed in Argentina's Patagonian wilderness fossils of what may be the oldest-known member of the dinosaur group known as titanosaurs that includes the largest land animals in Earth's history.

Researchers said on Monday the fossils represent a dinosaur species named Ninjatitan zapatai that lived 140 million years ago during the Cretaceous Period.

The researchers said Ninjatitan demonstrated that the titanosaurs as a group first appeared longer ago than previously known.

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.

Titanosaurs are part of a larger dinosaur group called sauropods that includes others with similar body designs such as Brontosaurus and Diplodocus that lived in North America during the Jurassic Period, which preceded the Cretaceous Period.

José Luis Carbadillo, another CONICET researcher, told a local university publication http://www.ctys.com.ar/index.php?idPage=20&idArticulo=3796 that the age of Ninjatitan's remains could have led people to assume that the bones belonged to a dinosaur group that pre-dated titanosaurs.

"In Patagonia, titanosaurs are only known about from less than 120 million years ago," he said.

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Amazon founder Jeff Bezos’ Blue Origin space venture says it’s targeting the fourth quarter of 2022 for the first flight of its orbital-class New Glenn rocket — which marks a major schedule shift.

In a blog posting, Blue Origin said its team “has been in contact with all of our customers to ensure this baseline meets their launch needs.” Blue Origin noted that the updated timeline follows the U.S.

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