Fossil of first giant dinosaur discovered in Argentina

Cecilia Apaldetti and colleagues investigate the bones More

The researchers found that the weight of I. prima ranged between seven and 10 tons, and showed elongated neck and long tail albeit not as pronounced as those seen in their later relatives.

Dinosaurs first appeared earlier in the Triassic Period, roughly 230 million years ago.

The dramatic discovery winds back the clock on the emergence of giant dinosaurs by a staggering 30 million years - shedding fresh light on their evolution.

The new species has been named Ingentia prima, meaning "first giant" in Latin.

Find, Baldetti and her colleagues belong to the number of sauropods - large quadrupedal herbivorous dinosaurs, making rate of its huge mass, a huge number of eggs in the clutch and rapid growth of young animals.

Cecilia Apaldetti of the University of San Juan said, 'Before this discovery, gigantism was considered to have emerged during the Jurassic period, approximately 180 million years ago, but Ingentia prima lived at the end of the Triassic, between 210 and 205 million years ago'. "It is a true giant, especially for that moment of evolution where most of the animals that coexisted did not exceed two meters in height and the largest reached, at most, three tons". However, the earliest examples of this group were small, bipedal creatures. Ingentia seems to have had a respiratory system much like that of modern birds: in addition to lungs, it had a pair of air sacs that would allow it to have a reserve of oxygenated air and let it cool down faster.

On top of that, Ingentia also seems to have grown in seasonal spurts kind of like a tree, instead of steadily like most other animals.

Chelsea's Kenedy has medical ahead of Newcastle loan return
With the future of Blues manager Antonio Conte still in doubt, Chelsea are still keen to begin their transfer dealings. But with Maurizio Sarri closing in on the job, decisions appear to be in the works at Stamford Bridge.

Stormy Daniels Arrested; Lawyer Claims 'Set-Up'
However, Trump - who initially denied knowledge of the payment - subsequently conceded that Cohen was in fact reimbursed. The Sirens Gentlemen's Club had posted on its website that Daniels was scheduled to perform there Wednesday and Thursday.

Trump's UK Visit Begins As President Lands At Stansted Airport
Mr Trump and his wife Melania are expected to stay in London only for a single overnight stay at the United States embassy. Trump had made a series of ill-informed comments about London - criticising crime rates and the threat of terrorism.

They were discovered in a dinosaur "nest" unearthed at a World Heritage site known for its fossils in Argentina's north western San Juan province.

But unlike their more recent counterparts they stood on bent legs and had bones that grew thick through accelerated bursts.

Ingentia Prima was about 33 feet (10 metres) long, 14 feet (4 metres) tall and weighed up to ten tonnes.

Fossils of the creature called Ingentia prima, a species of sauropodomorph, suggest that dinosaurs grew in size 30 million years earlier than previously thought.

The paleontologist Diego Pol at the Egidio Feruglio Museum in Argentina said that the discovery "gives a new look at the magnitude of the evolutionary explosion that the dinosaurs had". World's Oldest Dandruff Discovered on 125-Million-Year-Old Microraptor Dinosaur by Scientist.

The new dinosaur species Ingentia prima and similar species are grouped together as "lessemsaurids".

Related news:

Hot News

isis-killer-beheading-video-story-top For Trump visit, Brits try to boost 'American Idiot' to No. 1
Jul 12, 2018 - 21:44
Well, the week of the visit is finally upon us, and " American Idiot " has indeed started climbing the charts. So far the effort appears to be working, with the song checking in at No. 18 on the chart Tuesday.

isis-killer-beheading-video-story-top FBI’s Strzok Lashes Out at GOP During Hearing
Jul 12, 2018 - 21:24
The committee scheduled Thursday's hearing after Strzok called for a public hearing in the interest of transparency. Gowdy pressed him on why Mueller removed him from the Russian Federation probe if Strzok was not biased in any way.

isis-killer-beheading-video-story-top Emmy nominations: 'Game of Thrones' leads with 22 nods
Jul 12, 2018 - 20:56
Others in the category include "black'ish", "Silicon Valley ", " Curb Your Enthusiasm " and " Unbreakable Kimmy Schmidt ". Donald Glover's "Atlanta " is the top comedy with 16 bids.

isis-killer-beheading-video-story-top United Kingdom papers salute 'Pride of Lions' after England exit
Jul 12, 2018 - 20:39
I'd be amazed if he doesn't come out and something emerges about his fitness. He's captained the team brilliantly throughout this tournament.

isis-killer-beheading-video-story-top Trump releases letter from Kim Jong Un, touts "great progress"
Jul 12, 2018 - 20:37
Several days previously, Pyongyang had slated the U.S. for seeking unilateral and forced denuclearization from North Korea . Between 1996 and 2005, some 33 recovery operations were conducted in North Korea which saw 200 sets of remains returned.

isis-killer-beheading-video-story-top Kane 'gutted' as England's World Cup dream dies
Jul 12, 2018 - 20:09
We should have killed the game before extra time, but this is an awesome achievement for us, a dream come true. Southgate must now rally his side ahead of the third-place playoff against Belgium, the other semifinal loser.

isis-killer-beheading-video-story-top Kerber through to Wimbledon final after easy win over Ostapenko
Jul 12, 2018 - 19:56
It will be world number 10 Kerber's first Grand Slam final since she won the second of her two major titles at the 2016 US Open. Double fault, forehand winner, backhand error, forehand winner, forehand error, backhand winner, backhand winner, ace.

isis-killer-beheading-video-story-top Arsenal Confirm Matteo Guendouzi Has Joined The Club
Jul 12, 2018 - 19:49
Winning silverware, as I said, is very important to me and winning things here at Arsenal would be incredible". Arsenal manager Unai Emery says his summer recruitment is done - unless a "big opportunity" arises.

isis-killer-beheading-video-story-top US must convince judge it has reunited migrants under five
Jul 12, 2018 - 19:04
President Donald Trump took to Twitter on Wednesday to blame the Democratic Party, among others, for not fixing immigration. They will be set free in the U.S. pending the outcome of their immigration cases, which can take several years.

isis-killer-beheading-video-story-top Maurizio Sarri to Chelsea: Bookies pull the plug after major development
Jul 12, 2018 - 19:02
Oddly, the report also says Sarri will move into Chelsea's Cobham training ground rather than finding somewhere to live in the city.

isis-killer-beheading-video-story-top Starr reacts to Kavanaugh nomination
Jul 12, 2018 - 18:45
That line of thinking would be useful to Trump, who is unlikely to face impeachment so long as Republicans control Congress. One case likely to draw attention is Kavanaugh's 2015 dissenting opinion on the health care law's contraceptives mandate.

isis-killer-beheading-video-story-top Monstrous iceberg seen breaking off Greenland glacier
Jul 12, 2018 - 18:31
Scientists argue that this phenomenon not only lovely , but also causes an increase in water level in the sea. Apart from the large chunk thin and tall icebergs known as pinnacle bergs also drift out to sea.

Donald Trump flies in to a rough reception
Jul 12, 2018 - 18:29
Mr Trump is hardly likely to catch a glimpse of the six metre giant orange inflatable blimp that depicts him as a screaming baby. President Donald Trump and first lady Melania Trump arrive at Stansted Airport, Britain, July 12 2018.

isis-killer-beheading-video-story-top Papa John's founder resigns as chairman after using racial slur
Jul 12, 2018 - 18:28
Schnatter was eventually forced to step down as CEO, but he remained chairman of the board and the face of the brand. Papa John's shares fell almost five per cent Wednesday on the NYSE after the Forbes report, closing at $48.33.

isis-killer-beheading-video-story-top Justin Bieber and Hailey Baldwin are reportedly planning a 'very small wedding'
Jul 12, 2018 - 17:41
Selena didn't think they were even that serious, so the thought of them getting married is just mind-boggling to her". The Times-Herald Record reports the celebrity couple were in Nature's Pantry in New Windsor, N.Y., on Wednesday.