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Scientists have unearthed the largest fossils of 98 million years old in southwestern Argentina

Scientists have unearthed mα΄€ssive, 98-million-year-old fossils in southwest Argentina they say may have belonged to the largest dinosaur ever discovered.

Human-sized pieces of fossilized bone belonging to the giant sauropod appear to be 10-20 percent larger than those attributed to PatagoΡ‚ΞΉΡ‚an mayorum, the biggest dinosaur ever identified, according to a statement Wednesday from the National University of La Matanza’s CTYS scientific agency.




Sauropods were enormous long-necked, long-tailed, plant-eating dinosaurs β€“ the largest terrestrial creatures to ever have lived.

Among them, PatagoΡ‚ΞΉΡ‚an mayorum, also from Argentina, weighed in at about 70 tonnes and was 40 meters (131 feet) long, or about the length of four school buses.




(Jose Luis Carballido/CTyS-UNLaM/AFP)

Alejandro Otero of Argentina’s Museo de La Plata is working on piecing together a likeness of the new dinosaur from two-dozen vertebrae and bits of pelvic bone uncovered so far.

He has published a paper on the unidentified dinosaur for the scientific journal Cretaceous Research, according to the university statement.

The quest for more body parts, buried deep in rock, continues. For scientists, the holy grail will be the large femur or humerus bones, which are helpful in estimating a long-extinct creature’s body mα΄€ss.




The mα΄€ssive fossils were discovered in 2012 in the Neuquen River Valley, but excavation work only began in 2015, according to palaeontologist Jose Luis Carballido of the Museo Egidio Feruglio.

(Jose Luis Carballido/CTyS-UNLaM/AFP)

β€œWe have more than half the tail, a lot of hip bones,” said Carballido, who also worked on the classification of PatagoΡ‚ΞΉΡ‚an a few years ago.




β€œIt’s obviously still inside the rock, so we have a few more years of digging ahead of us.”

The mα΄€ssive skeleton was found in a layer of rock dated to some 98 million years ago during the Upper Cretaceous period, added geologist Alberto Garrido, director of the Museum of Natural Sciences of Zapala.

β€œWe suspect that the specimen may be complete or almost complete,” he said.

β€œEverything depends on what happens with the excavations. But regardless of whether it is bigger (than PatagoΡ‚ΞΉΡ‚an) or not, the discovery of an intact dinosaur of such dimensions is a novelty.”




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