Scientists unearth 220 million-year-old dinosaur fossils in Argentina




  • In Science
  • 2019-04-18 06:47:04Z
  • By AFP

Buenos Aires (AFP) - A site containing the 220-million-year-old fossilised remains of nearly a dozen dinosaurs has been discovered in western Argentina, researchers said Wednesday.

"There are almost ten different individuals, it's a mass of bones, there's practically no sediment," said Argentinian paleontologist Ricardo Martinez.

"It's very impressive."

According to Martinez, of the University of San Juan, the fossils are approximately 220 million years old, belonging to "an era of which we know little".

"This discovery is doubly important because there are at least seven or eight individuals of dicynodonts, the ancestors of mammals, the size of an ox," he said.

He said there were also remains of archosaurs, reptiles that could be the ancestors of great crocodiles "that we do not know about yet".

The find was discovered in September last year in San Juan province, about 1,100 kilometres (680 miles) west of Buenos Aires.

The site is between one and two metres (yards) in diameter and about the same depth, leading scientists to speculate it was a former drinking hole at a time of great drought, and the creatures died of weakness at the spot.

Argentina has been a rich source of fossils from the Triassic, Jurassic and Cretaceous eras over the years -- most, of creatures not found in the northern hemisphere.

COMMENTS

More Related News

Discovery of billion-year-old fungi changes our understanding of life on Earth
Discovery of billion-year-old fungi changes our understanding of life on Earth

When scientists search for species that lived hundreds of millions of years ago they're not always just looking for ancient animals. Life on Earth has changed a lot over time, but sometimes a new discovery reveals a few things that have stayed largely the same.In a new paper published in Nature, researchers reveal the discovery of tiny microfossils dating back at least 900 million years -- and perhaps even as far as one billion years -- that prove that some forms of fungi were alive and well much farther back in Earth's history than previously thought.The idea that life on Earth began in the oceans is something that has been largely accepted by scientists, but when life moved from the sea...

Old mold: Fossil of world
Old mold: Fossil of world's earliest fungus unearthed in Canada

Scientists said on Wednesday the multicellular fungus that they named Ourasphaira giraldae - forerunner to an immensely diverse group that today includes the likes of mushrooms, yeasts and molds - lived in an estuary environment about 900 million to 1 billion years ago. Until now, the oldest-known fungus fossil was one about 410 million years old from Scotland. Fungi play a crucial role in global ecosystems such as in the organic decomposition process.

'These are the best players we have' - Argentina's Scaloni defends exclusion of Icardi

The Inter forward has been left out of his country's Copa America squad but the manager insists he has chosen the best available players

Kirchner corruption trial opens in Argentina
Kirchner corruption trial opens in Argentina

Former Argentine president Cristina Kirchner arrived in court Tuesday for the start of a corruption trial that will unfold as the country heads towards general elections in October. Kirchner, 66, is accused of favoring a businessman friend, Lazaro Baez, for lucrative road construction contracts in Argentina's southern Santa Cruz province. In a message on Twitter hours before her court appearance, she dismissed the trial as a "smokescreen" intended to distract voters from the country's "dramatic" economic problems.

Leave a Comment

Your email address will not be published. Required fields are marked with *

Cancel reply

Comments

Top News: Science

facebook
Hit "Like"
Don't miss any important news
Thanks, you don't need to show me this anymore.