Multiple skeletons of Oksoko avarsan, a feathered omnivorous dinosaur that has grown to 2 meters long, they were excavated in Mongolia’s Gobi desert by researchers from the University of Edinburgh, according to a statement released Tuesday.
It had a large toothless beak like modern-day parrots and only two fingers on each forearm, one less than its close relatives.
It is the first time that scientists have seen evidence of digit loss among the oviraptors, a family of three-toed dinosaurs.
The evolution to have fewer figures suggests they may also “alter their diet and lifestyle and allow them to diversify and multiply,” according to the statement.
The “very complete”
“But more importantly, his two-fingered hand prompted us to look at how the hand and forelimb changed during the evolution of oviraptors – which hadn’t been studied before,” Funston said in a statement. .
“This revealed some unexpected trends that are a key piece in the puzzle of why oviraptors were so different before the extinction that killed the dinosaurs.”
Oviraptor’s arms and hands evolved rapidly as they migrated to new areas in what is now North America and the Gobi Desert, the team found.
The study was published Tuesday in the Royal Society Open Science journal.
It was also “the first largely complete skeleton that I think anyone has found of these guys,” he said.
Anzu wyliei was a 600-pound cross between an ostrich and a velociraptor. It had a bird-like beak and noticeable feathers, with a large crest at the top of the skull, and it chewed on vegetation, small animals, and possibly eggs.