In July 1965, two gigantic fossilized dinosaur arms replete with menacing claws were unearthed in the remote southern Gobi desert of Mongolia. Measuring 8 feet (2.4 meters), they were the longest arms of any known bipedal creature in Earth’s history.
But nearly everything else was missing, leaving experts baffled about the nature of this beast with the behemoth arms. Half a century later, the mystery has been solved.
Scientists said on Wednesday two almost complete skeletons of the bizarre 70-million-year-old creature, Deinocheirus mirificus (meaning “unusual horrible hand”), show it boasted a combination of unorthodox traits, including the famous arms, never before seen in a single dinosaur.
At 36-feet-long (11 meters) and 6.4 tons, it was the largest known member of a group of bird-like dinosaurs called ornithomimosaurs (“ostrich mimics”), the researchers said.
Its back was topped with long spines that supported a sail-like structure whose function remains enigmatic. It had fused tail vertebrae to support tail feathers.
Thriving in an river region, it was an omnivore, eating fish and plants with a beaked, toothless snout that flared out to the sides like the herbivorous duckbilled dinosaurs. It had broad feet with toes ending in squared-off hooves that may have helped it stand on wet ground.
Deinocheirus had wide hips and moved slowly but was capable of defending itself thanks to its sheer size and its three ripping claws on each hand. It was virtually as big as the apex predator in the neighborhood, Tyrannosaurus rex’s cousin Tarbosaurus.
Scientists had speculated for decades about Deinocheirus. It was accurately recognized as a type of theropod, the dinosaur branch that includes giants like T. rex but also the lineage that evolved into birds – but what type?
“Deinocheirus has remained one the most mysterious dinosaurs in the world. We found almost (complete) skeletons of Deinocheirus and know now how it looked, how big it was and what it ate,” said paleontologist Yuong-Nam Lee, director of Geological Museum at the Korea Institute of Geoscience and Mineral Resources in Daejeon, South Korea.
University of Maryland paleontologist Thomas Holtz, who wrote a commentary accompanying the study in the journal Nature, said no one could have predicted its astonishing array of attributes.
“I’ve literally waited my whole life to see Deinocheirus finally unveiled,” Holtz said.
Some bad luck almost prevented the unveiling. The two new skeletons were found in 2006 and 2009 at Gobi sites in Mongolia. Both suspiciously were missing their heads and other key parts. The scientists realized those had been poached by illegal fossil collectors, with parts sold off to private collectors.
The missing parts from the 2009 excavation ended up with a collector in Germany but fortuitously were seen by Belgian paleontologist Pascal Godefroit, who recognized what they were and informed Lee and other scientists.
Lee said the researchers persuaded the collector to donate the fossils because of their importance to science. The fossils were returned to Mongolia in May. But Lee said the 2006 fossils remain missing.
(Reporting by Will Dunham; Editing by Tom Brown)
WATCH: John Oliver exposes Trump’s lies about vote-by-mail — and the Fox News ‘cult’ claiming the election is already ‘rigged’
"Last Week Tonight" host John Oliver's main story Sunday refuted President Donald Trump's latest crusade against vote-by-mail. Trump announced on Twitter that the more people who vote in an election, the more Republicans tend to lose. So, he wants fewer people to have access to the ballot in November, even if people are too scared to go out during the coronavirus crisis.
Oliver called out Missouri Gov. Mike Parson (R-MO), who outright told people not to vote if they were too afraid to vote in the local elections next week.
"Well, hold on there," Oliver interjected. "Voting is a right. It has to be easy to understand and accessible to anyone."
John Oliver rips Fox News’ Tucker Carlson for urging ‘order’ from people of color — but never demanding it of police
John Oliver opened his Sunday show, shredding Fox News host Tucker Carlson for uring "order" among protesters, but refusing to urge "order" to police and "wannabe police" who can't stop killing people.
It's a lot, Oliver explained. "How these protests are a response to a legacy of police misconduct, both in Minneapolis and the nation at large and how that misconduct is, itself, built on a legacy of white supremacy that prioritizes the comfort of white Americans over the safety of people of color."
While some of it is complicated, Oliver conceded, most of it is "all too clear."
Cars set on fire blocks from White House as DC protests turn violent
The Washington, D.C. protests turned violent as the city approached the 11 p.m. curfew the mayor instituted Sunday afternoon.
The policy of D.C. police is that when they are attacked, they advance forward. So, when fireworks were fired, the line of officers began pushing the protesters back further from the White House. Behind the line of police officers also stand a line of National Guard troops that President Donald Trump has demanded stand watch in the city.
Lights that normally shine on the White House have also been turned off, reporters revealed.