These crawls are part of an effort to archive pages as they are created and archive the pages that they refer to. That way, as the pages that are referenced are changed or taken from the web, a link to the version that was live when the page was written will be preserved.Then the Internet Archive hopes that references to these archived pages will be put in place of a link that would be otherwise be broken, or a companion link to allow people to see what was originally intended by a page's authors.The goal is to fix all broken links on the web . Crawls of supported "No More 404" sites. ||||| News of the new titan spread quickly. Last January, a cast of the sauropod went on display at the American Museum of Natural History, while legendary naturalist David Attenborough released a documentary about its discovery. And now, Carballido and his team have finally published an official scientific description of the dinosaur. They’ve also given it a name—Patagotitan mayorum. The first half refers to the Patagonian region where the dinosaur was found. The second half honors the Mayo family who kindly welcomed the scientists onto their land and into their kitchen. 
 
 After careful analysis, the team think that Patagotitan is slightly smaller than they previously thought—69 tons or so. But even after that downsizing, it’s still twice as heavy as more familiar giants like Brachiosaurus and Apatosaurus, and 10 percent bigger than the previous record-holder—another Argentinian titanosaur called Argentinosaurus. For now, it’s the biggest dinosaur for which we have accurate measurements, and perhaps the biggest land animal that ever lived. 
 
 “We have a decent idea how well the various methods for estimating dinosaur body mass work, and they tend to agree well enough most of the time,” says John Hutchinson from the Royal Veterinary College. “Even taking into account the uncertainty of those methods, Patagotitan comes out as a 60- to 80-ton behemoth. And nothing else we know of yet comes very close.” 
 
 Patagotitan cast, in a hangar. D. Pol. 
 
 Patagotitan lived during the Cretaceous period around 101 million years ago. And for some reason, it frequented the area that eventually became the Mayo family’s farm. Carballido and Pol’s team returned to the site more than a dozen times, disinterring every fossil they could find. In the process, they built a road and partially removed a hill. Eventually, they recovered bones from at least six Patagotitan individuals. And their bones reveal that they were in their prime—young, still growing, and not yet at their full adult size. 
 
 Carballido thinks that these individuals all died at different times, but he has no idea why they all died in this one place. He found the teeth of many meat-eating dinosaurs around the site, but he doubts any predator could have tackled such gargantuan prey. “They were too strong,” he says. “It would have been too risky for a carnivore.” Whatever their reasons, their attraction to this one place meant that Carballido’s team eventually uncovered more than 200 Patagotitan bones, covering most of the animal’s skeleton. “The most amazing moment for us was realizing that the dinosaur is not only large, but also more complete than any other titanosaur,” Carballido says. 
 
 It’s ironic that scientists have found very little of the largest animals to have walked the land. We only know that Argentinosaurus existed based on a few handfuls of bones—some vertebrae, ribs, and leg bones, most of which are incomplete. Puertasaurus, another contender for the record books, is known from just four vertebrae. There are near-complete skeletons for some titanosaurs like Futalognkosaurus, but these were smaller species that weighed in at just 50 tons or so. The true colossi of the dinosaurs are hard to come by. ||||| Reconstruction of Patagotitan mayorum. Credit: Jorge Gonzalez A study proclaims a newly named species the heavyweight champion of all dinosaurs, making the scary Tyrannosaurus rex look like a munchkin. 
 
 At 76 tons (69 metric tons), the plant-eating behemoth was as heavy as a space shuttle. 
 
 The dinosaur's fossils were found in southern Argentina in 2012. Researchers who examined and dated them said the long-necked creature was the biggest of a group of large dinosaurs called titanosaurs. 
 
 "There was one small part of the family that went crazy on size," said Diego Pol of the Egidio Feruglio paleontology museum in Argentina, co-author of the study published Tuesday in the journal Proceedings of the Royal Society B. 
 
 The researchers named the dinosaur Patagotitan mayorum after the Patagonia region where it was found and the Greek word titan, which means large. The second name honors a ranch family that hosted the researchers. 
 
 Six fossils of the species were studied and dated to about 100 million years ago, based on ash found around them, Pol said. The dinosaur averaged 122 feet long (37 meters) and was nearly 20 feet high (6 meters) at the shoulder. 
 
 A cast of the dinosaur's skeleton is already on display at the American Museum of Natural History. It's so big that the dinosaur's head sticks out into a hallway at the New York museum . 
 
 Reconstruction of the dinosaur Patagotitan mayorum. Credit: Museum of Paleontology / Egidio Feruglio 
 
 Legendary T. rex and other meat-eaters "look like dwarfs when you put them against one of these giant titanosaurs," Pol said. "It's like when you put an elephant by a lion." 
 
 Scientists have known titanosaurs for a while, but this is a new species and even a new genus, which is a larger grouping, Pol said. Another titanosaur called Argentinosaurus was previously thought to be the largest. 
 
 "I don't think they were scary at all," Pol said. "They were probably massive big slow-moving animals." 
 
 "Getting up. Walking around. Trying to run. It's really challenging for large animals," he said. 
 
 The big question is how did these dinosaurs get so big, Pol said. Researchers are still studying it, but said it probably has to do with an explosion of flowering plants at the time. Along with a forest, it was like an all-you-can-eat buffet for these dinosaurs and they just got bigger. 
 
 "It's hard to argue this isn't a big deal when it concerns the (probable) largest land animal ever discovered," University of Maryland paleontologist Thomas Holtz, who wasn't part of the study, said in an email. 
 
 Kristi Curry Rodgers, a paleontologist at Macalester College who wasn't part of the study, praised the work as important. She said the fact that Patagotitan's bones show signs that they haven't completed their growth "means that there are even bigger dinosaurs out there to discover." 
 
 Explore further: Mammoth dinosaur cast goes on display in NY 
 
 More information: A new giant titanosaur sheds light on body mass evolution amongst sauropod dinosaurs, Proceedings of the Royal Society B, rspb.royalsocietypublishing.or … .1098/rspb.2017.1219 
 
 ||||| Spencer Platt/Getty Images 
 
 Fossilised bones from six dinosaurs may have belonged to the biggest animal ever to have walked the Earth. 
 
 The fossils, which include vertebrae and rib bones, are from six young adult dinosaurs, and were all found in the same Patagonian quarry in Argentina. The species, named Patagotitan mayorum, is thought to have weighed around 62 tonnes and measured more than 35 metres from nose to tail. 
 
 If you’re struggling to picture that, it’s about seven elephants, or more than two buses, or half the width of a football pitch, or somewhere between a standard swimming pool and an Olympic pool. That’s longer than Brachiosaurus was, and blue whales are today – both these species reach a maximum of about 30 metres. 
 
 Advertisement 
 
 Patagotitan lived 100 million years ago, during the Cretaceous period, and was a sauropod – a huge plant-eater with a long tail and neck, that stood on four legs. 
 
 The species has competition for the crown of largest ever land animal. A similar dinosaur called Argentinosaurus has been calculated to have weighed more than 80 tonnes, but Jose Carballido, from the Museo Paleontologico Egido Feruglio, Argentina, says vertebrae fossils suggest this species was in fact 10 per cent smaller than Patagotitan. 
 
 Journal reference: Proceedings of the Royal Society B, DOI: 10.1098/rspb.2017.1219 
 
 Read more: Largest land dinosaur yet makes T. rex look tiny
– One hundred million years ago, a sauropod that stretched more than 120 feet and weighed some 70 tons existed—perhaps the largest creature to ever roam the Earth. Over the past few years, researchers have excavated fossils from six young-adult dinosaurs from a Patagonian quarry, and New Scientist puts stats for Patagotitan mayorum in perspective: The creature would have been the length of about seven elephants. The AP estimates it would have been as heavy as a space shuttle, with team member Diego Pol noting that placing Patagotitan next to a T. rex would be like putting "an elephant by a lion." Per the Atlantic, that means the plant-eating Patagotitan was double the size of the already-huge brachiosaurus and apatosaurus, and about 10% larger than the reigning dinosaur giant, a titanosaur known as Argentinosaurus. As the study in the Proceedings of the Royal Society B journal details, this find sheds more light on how sauropods in the 12- to 20-ton range saw their mass triple, evolving into lognkosaurs, of which Patagotitan is a member. Charlotte Brassey, a Manchester Metropolitan University researcher not tied to the study, speculates that this animal from the Cretaceous period ballooned in size perhaps due to increasingly diverse and abundant plants that were like an "all-you-can-eat buffet for these dinosaurs," the AP notes. Brassey notes that the Patagotitan's skeleton, metabolism, or behavior (or all of these things) could have changed and spurred the growth spurt. "Maybe someone can find a bigger [dinosaur], but I feel like maybe this is the limit," study co-author Jose Carballido says. (This dinosaur devoured sharks.)