Fossil of new dinosaur species discovered in Argentina

Researchers admit the discovery of the giant dinosaur was a surprise

Now, the discovery of Ingentia prima - a member of the Lessemsaurid group of dinosaurs and an ancestor of sauropods - shows that some dinosaurs had acquired several key characteristics during the Late Triassic that paved the way toward gigantism.

Dr Apaldetti said: 'Until now it was believed the first giants to inhabit the Earth originated during the Jurassic - about 180 million years ago.

Giant dinosaurs lived on Earth nearly 30 million years earlier than previously thought, according to a team of paleontologists in Argentina, who unearthed fossils of the earliest-known giant dinosaur. Until now, it was believed it emerged with the appearance of the first sauropods in the Jurassic period.

This period was a pivotal stage in the history of dinosaurs, but the fossil record is so incomplete it obscures details of this crucial evolutionary change.

They had long necks and tails and relatively small skulls and brains.

"This new discovery was a pleasant surprise, and I think it's one of the most important dinosaur finds of the last few years", Steve Brusatte, a paleontologist at the University of Edinburgh in Scotland who wasn't involved in the study, told Live Science.

Ingentia Prima would have lived in what is now Argentina, but was then the southeast corner of the supercontinent Pangaea.

For dinosaurs, "gigantism" was a survival tool, with herbivores using their huge size to defend against predators.

I. prima was also found alongside three specimens of an already known species called Lessemsaurus sauropoides. It was discovered in the Balde de Leyes dig site in San Juan province, 1,100 kilometers (680 miles) west of the Argentine capital Buenos Aires.

The remains included shoulder blades, cervical vertebrae and bones from the forelimbs, feet and skull of the four dinosaurs. These repiratory structures may have been necessary to keep such large animals cool.

The dinosaur's bone fragments displayed cyclical and seasonal growth, with a different kind of tissue to other sauropods, which allowed it to grow very quickly. It belongs to a group of dinosaurs known as sauropods, which includes some of the largest land animals ever known to have existed.

Related News:



Most liked

Green Day’s ‘American Idiot’ Is Topping UK Charts Upon Trump’s Visit
Campaigners seem to be doing quite a solid job already, with the track topping the British Amazon charts as of July 6th. On Amazon in the U.K., American Idiot is now the best-selling song.

8 boys freed from Thai cave; rescuers working to save 5 others
Rescue mission chief Narongsak Osottanakorn said it had resumed, with divers re-entering the cave at 11am local time (4pm NZT). Authorities say it could take a total of three to four days to get the remaining boys and the coach out of the cave.

'Thank You Infinitely': Cristiano Ronaldo Addresses Real Madrid Fans Following His Departure
Subsequently, Hazard sent a number of Chelsea fans into a anxious frenzy with his statements. As I've said 100 times before, I'm very happy at Chelsea ".

Iranian teen arrested for dancing videos
In retaliation to these social media activities, the Iranian authorities have found a new enemy of the state - the internet. In February police arrested a woman, Shapark Shajarizadeh, for removing her Islamic head-covering during a public protest.

Andhra Pradesh tops the list of 'ease of doing business' in India
DIPP in collaboration with the World Bank conducts an annual reform exercise for all States/UTs under the BRAP. The other states that make up the top 10 are Chhattisgarh, Madhya Pradesh, Karnataka and Rajasthan.

5 reasons to watch 'Sharp Objects' on TV tonight
At the ATX Television Festival earlier this year, author of the novel Gillian Flynn spoke about how the book came to be. One, he believes the murders are connected; and two, he senses that Camille isn't facing her past.

Cloudy with a chance of spiders?
Morley told VOA that spiders only tiptoe right before they release silk draglines to fly away, in a process called ballooning . Mathematician Longhua Zhao from Case Western Reserve University in Cleveland has made computer models of how spiders balloon.

Drake breaks Beatles historic record
Since the release of Drake's latest LP Scorpion , the Canadian artist has dominated the tops spots of the Billboard Music charts. It racked up 745.92 million USA online plays in its first week, the highest streaming debut for any artist ever.

Pranked Sarah Palin Rips Sacha Baron Cohen for Mocking Vets
Cohen to donate all the proceeds from his new series to a charity that "actually respects and supports American Vets". The former governor then challenged Mr.

Google Pay gets boarding passes, ability to send money to contacts
And finally, Google has updated the Google Pay web experience to both sync transactions and give you control over everything. The second tab in the app is now called "Payment" and features just credit and debit cards, as well as Google Play balance.

North West Is Already in a Fendi Campaign
Making mama proud! Kim Kardashian shared adorable new videos of daughter Chicago West . When she was just 13 months old, she modeled in her first shoot .

Galaxy S10 release - Samsung could make its flagship more affordable
When the Galaxy S9 Plus was first introduced, it was immediately reviewed and held the top rank at DxOMark . First up, we have a new render of the Galaxy Note 9's front panel via the folks over at AndroidHeadlines .

LeBron James called former teammate Kyrie Irving soft
Rumors and what the Cavaliers are saying publicly have differed regarding whether Love may be on the move. Cleveland is likely going to have some more roster turnover before the start of the year, too.

Hearthstone’s The Boomsday Project Expansion Unleashes New Mechs and Tech This Summer
Gnomes, this expansion focuses on the lighter side of things, with mechs, insane explosions and ridiculous cards. It does have some good synergy with Fal'Dorei Strider , which summons creatures as you work through your deck.

Coast Guard crews search for man missing from cruise ship
The vessel was in US waters, just north of Cape Flattery, at the northwestern tip of Washington state's Olympic Peninsula. Coast Guard says a helicopter crew found and recovered the unresponsive elderly man.