A new type of dinosaur With strange claws, it was discovered in Mongolia by excavation scientists.
This new sex and species is Theizinosaur, and clients who eat plants, and with long claws, and discovered burial in the Jobi desert, according to a new study published on Tuesday (25 March) in Iscience magazine.
Unlike the other theerizinosaors, which have three fingers on their hands equipped with long and sharp claws, this new type has only two fingers. This unique autopsy inspired its scientific name, named Duonychus TsogtbaaAratiAnd it is a Greek for “two numbers” and honors the world of Mongolian excavations Khishigjjav tsogtbaaatar.
“Many types have been discovered. Darla ZellingskyI told the world of excavations at Calgary University in Canada, direct sciences in an email. “To find a sample with only two fingers/claws was surprising because this was out of the ordinary group of dinosaurs.”
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Theerizinosaurs is a group of dinosaurs that have lived through what is now known as Asia and North America during the late Cretaceous period (from 100 million to 66 million years). Although it is part of the Theopod group of dinosaurs – usually associated with meat dinosaurs like meat Tyrannosaurus Rex – Treizinosaurs was the herb. These dinosaurs are famous for their huge claws in the form of a scythe Up to 20 inches (50 cm).
All other therizinosaurss that have been discovered, including theerizinosaurus and BeipiaosaurusYou have three claw fingers on their hands, and make the discovery of two hidden D. tsogtbaatari unusual.
Theerizinosaurs is already some of the most unusual dinosaurs there, however Duonychus TsogtbaaArati He takes it to another level, “the main author of the study Yoshitsugu KobayashiI told the world of excavation at the University of Hokkaido in Japan, direct science in an email. “These newly discovered species of Mongolia break the mold with only two fingers instead of the typical three, providing a rare glimpse of how the hands developed and adapted.” “But what makes this discovery really exciting is the oathy of the cornea well-reserved on its claw-the first such situation in the medium-sized therubod dinosaur,” Kobayashi added.
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The new fossil was discovered during the construction of a water pipeline in the formation of BayanSHiree in the province of ömnögovi, southern Mongolia. The sample was excellent, with 3D sheath where the claw – made of keratin, like our nails – would be. Parts of weapons, spine and hips were also preserved.
“The hands are a distinctive feature of Theizinosaurs, it is wonderfully preserved with all the bones of the finger and the wrist is intact in this sample,” said Zellingski. “Even the clutch conical is preserved, reveals the size of its sharp claws.”
Other types of dinosaurs, such as T RexHe had two fingers, but this represents the first time that TRSHINOSAUR was found with less than three numbers. This type may have evolved to inspect one of the three fingers of its predecessors, as the authors of the study suggested.
The researchers believe this D. tsogtbaatari This unique hand has evolved to improve the vegetation, allowing more efficient nutrition.
“Loss of the third finger in Duonychus TsogtbaaArati “It may make his remaining fingers better in what was designed for him-to assimilate,” Kobayashi said. Based on the shape of its very preserved claw and how it gave me, Duonychus Its hands are likely to use to seize the branches and withdraw the vegetation closer, somewhat like how it does the chameleon today. ” Duonychus This takes another level in the structure of the extremist claw. “
In addition, Kobayashi suggested that the claws may have played other roles, as in “defense, flirting, or even play.”
The researchers feel overwhelmed by this discovery, because it not only reveals an unexpected diversity within Theizinosaurs, but also represents the fifth time that the Dinosaur group has evolved to inspect its third finger.
“While more fossils will help confirm this, all signs indicate this Duonychus “They represent a real evolutionary transformation, and not just a coincidence, it is a wonderful discovery that restores our understanding of bullus and the development of theroPod as a whole,” said Kobayashi.