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The traditional reptile lived within the Higher Cretaceous interval 86 million years in the past, and it is the biggest pterosaur species ever found in South America, analysis creator Leonardo D. Ortiz David mentioned. He’s the coordinator common of the Laboratory and Museum of Dinosaurs on the Nationwide College of Cuyo in Mendoza, Argentina.
In Greek, Thanatos means demise and drakon means dragon, Ortiz David mentioned.
“Amaru was chosen because the species identify as a result of it represents an imposing deity within the cosmovision of some aboriginal peoples of South America,” he mentioned.
Two completely different specimens have been present in 2012 in southern Mendoza within the Plottier Formation, a bunch of sedimentary rocks containing the stays of sauropods, theropods, turtles, crocodiles and pterosaurs, Ortiz David mentioned.
He had been working within the space for 12 years and was shocked to search out the pterosaur stays, which have been uncommon within the outcrops the place he labored, he mentioned.
The flying reptiles belong to the household of pterosaurs known as Azhdarchidae, and featured oversize heads, elongated necks and brief our bodies, he mentioned. The 2 specimens’ wingspans have been about 23 and 29.5 toes (7 and 9 meters), respectively, Ortiz David mentioned.
The bigger specimen has an higher arm bone whereas the smaller one has a lot of its physique, legs and wings, mentioned James Kirkland, Utah’s state paleontologist with the Utah Geological Survey. He was not concerned within the research.
“It is a very spectacular discovery, as big azhdarchid pterosaur bones are so skinny and delicate and only a few are discovered, significantly since they dwell in inland environments,” Kirkland mentioned.
The animal additionally sported a proportionally massive head, however Ortiz David mentioned he didn’t know the aim of it — if any.
Kirkland additionally didn’t know the rationale for the huge head, however the matching beak could possibly be used for consuming, he mentioned.
“The lengthy toothless beak might have served nicely for swallowing smaller prey gadgets complete a lot as pelicans do,” Ortiz David mentioned by way of e-mail.
How you can see the pterosaur
The fossils are being saved on the Laboratory and Museum of Dinosaurs in Mendoza.
The general public just isn’t in a position to view the specimens as a result of they’re so precious, however casts of among the fossils from the 2 specimens have been made for viewing on the museum, Ortiz David mentioned.
There may be additionally a life-size reconstruction on show, he added.
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