Fossils have been detected during the construction of a water pipeline in the Gobi Desert of Mongolia, revealing one of the most strange members of a strange group of dinosaurs, a creature, with a two -finger -handed hand, plays a pair of curved claws.
Researchers stated that dinosaurs named dinachs tsogtabatri were measured for about 10 feet (three meters) long, which weighed about 260 kg and lived about 90 to 95 million years ago during the Cretesius period. Its claws measure about one foot long.
Duonychus was a medium-sized member of a group of strange dinosaurs called Therizinosaurus, known for having a rotand torso, long neck, small head, bipaded stance, wings on the body and large-scale claws on the hands.
While they were part of the clad of the dinosaurs, called theropods that included all the meat-eating such as tirenosaurus and spinosaurus, the therizinosaurus preferred plants on their menu.
Therizinosor, who reside in Asia and North America, is distinguished by their large claws. Till now, every known Therizinosor had three claw fingers. But Duonychus had a low, making it appropriate that its name means “Do Claw”.
“Therizinosaurus are some strange dinosaurs. They were theropods-hence, related to the meat-eating-but they looked like a huge winged sloths,” the peliyontologist Yoshitsugu Kobayashi of the Hokkaido University Museum in Japan said by the lead author of the research published on Tuesday. ISCIENCE,
“Dounichus takes that strange even further. It had this small, two finger hands with claws such as a raptor (Swift, meat-eating dinosaur), but it used them to eat plants. It is like growth, ‘Let’s try to do something completely new.” And it worked, “Kobayashi said.
Researchers stated that this duonychus person had not fully developed. It wandered in a semi-dry environment with other therizinosor, armored dinosaurs, horny dinosaurs, duck-bed dinosaurs and a small precursor to the tirenosaurus with river channels, called electrocosaus.
While the recovered skeleton was incomplete-for example, remembering its skull and legs-hand and hands were well preserved.
One of the claws maintained its outer cover – a sheath of keratin, the same material in our nails – instead of just the underlying bone. Keratin sheath added more than 40% of the claw length.
“These were large, sharp and dirty claws,” said by Peliantologist and studied Darla Zaleitsky, co-writer at the University of Calgary in Canada.
“This is incredibly rare,” Cobayashi said about the Keratin fossil, “and it gives us an extraordinary window of how these dinosaurs actually use their hands in life. The hands are beautifully preserved and showing a tonne details, including fusured wrist bones, rigid joints and two large -scale paws.
Claws may serve many tasks, although mainly used to grab and pull branches to feed on leaves.
