International
Dinosaur tail found in Chile stuns scientists
AFP
Chilean paleontologists on Wednesday presented their findings on a dinosaur discovered three years ago in Patagonia which they said had a highly unusual tail that has stumped researchers
The remains of the Stegouros elengassen were discovered during excavations in 2018 at Cerro Guido, a site known to harbor numerous fossils, by a team who believed they were dealing with an already known species of dinosaur until they examined its tail.
“That was the main surprise,” said Alexander Vargas, one of the paleontologists. “This structure is absolutely amazing.”
“The tail was covered with seven pairs of osteoderms … producing a weapon absolutely different from anything we know in any dinosaur,” added the researcher during a presentation of the discovery at the University of Chile.
The osteoderms — structures of bony plaques located in the dermal layers of the skin – were aligned on either side of the tail, making it resemble a large fern.
Paleontologists have discovered 80 percent of the dinosaur’s skeleton and estimate that the animal lived in the area 71 to 74.9 million years ago. It was about two meters (almost seven feet) long, weighed 150 kilograms (330 pounds) and was a herbivore.
According to the scientists, who published their research in the journal Nature, the animal could represent a hitherto unknown lineage of armored dinosaur never seen in the southern hemisphere but already identified in the northern part of the continent.
“We don’t know why (the tail) evolved. We do know that within armored dinosaur groups there seems to be a tendency to independently develop different osteoderm-based defense mechanisms,” said Sergio Soto, another member of the team.
The Cerro Guido area, in the Las Chinas valley 3,000 km (1,800 miles) south of Santiago, stretches for 15 kilometers. Various rock outcrops contain numerous fossils.
The finds there allowed the scientists to surmise that present-day America and Antarctica were close to each other millions of years ago.
“There is strong evidence that there is a biogeographic link with other parts of the planet, in this case Antarctica and Australia, because we have two armored dinosaurs there closely related” to the Stegouros, said Soto.
International
Six killed, including baby, in armed attack near tourist beach in Ecuador
Six people, including a baby girl about two years old, were killed on Sunday in an armed attack near a tourist beach in southwestern Ecuador, police said. The shooting, carried out with rifles, also left three people wounded.
The incident took place in the coastal town of Puerto López, in the province of Manabí, a popular tourist destination known for whale watching. The attack occurred amid a surge of violence over the weekend that left at least nine people dead nationwide, according to local media reports.
“There are six fatalities and three injured,” Colonel William Acurio, the local police commander, told reporters on Sunday. He confirmed that one of the victims was a baby “approximately two years old.”
Authorities have not released further details about the motive behind the attack or whether arrests have been made.
International
Man accused of killing nine in Paramaribo dies by suicide in police custody
The man who killed nine people, including five children, on Saturday night in Paramaribo died by suicide while in custody, Suriname police confirmed in a statement on Monday.
The suspect, identified by the initials D.A., 43, “hanged himself inside a holding cell at the Keizerstraat police station” in the capital, Paramaribo, according to the official report.
Police said the man sustained leg injuries during his arrest and was taken to a hospital before being transferred to the detention facility on Sunday night. Authorities did not provide further details on the circumstances surrounding his death.
International
Winter storm disrupts holiday travel, forcing 1,500 flight cancellations in the U.S.
Airlines canceled around 1,500 flights across the United States during the peak Christmas travel season after warnings of a severe winter storm and forecasts of heavy snowfall in the Midwest and Northeast. An additional 5,900 flights were delayed due to adverse weather conditions.
More than 40 million Americans were under snowstorm warnings or weather advisories one day after Christmas. Meanwhile, another 30 million people faced flood or storm alerts in California, where an atmospheric river triggered intense rainfall.
New York City was bracing for up to 25 centimeters (10 inches) of snow overnight, which would mark its heaviest snowfall in four years. Cold weather was expected to persist through the weekend in the nation’s largest city. According to flight-tracking website FlightAware, airports in the New York area recorded about 850 flight cancellations.
Six killed, including baby, in armed attack near tourist beach in Ecuador
Man accused of killing nine in Paramaribo dies by suicide in police custody
Winter storm disrupts holiday travel, forcing 1,500 flight cancellations in the U.S.
Tec de Monterrey honors one of its students for his contribution to nanotechnology in medicine
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