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Scientists delight in devising explanations for the great dinosaur extinctions. But there are several questions which they have failed to even ask, much less tried to answer. Why, for instance, in all of the time claimed to have passed since the dinosaur extinctions, has nothing ever re-evolved to the sizes of the large dinosaurs? If such sizes worked for creatures which ruled the Earth for tens of millions of years, then why would not some species of elephant or rhinoceros have evolved to such a size again? What kinds of problems, if any, would sauropod sizes entail in our world...

Scientists delight in devising explanations for the great dinosaur extinctions. But there are several questions which they have failed to even ask, much less tried to answer. Why, for instance, in all of the time claimed to have passed since the dinosaur extinctions, has nothing ever re-evolved to the sizes of the large dinosaurs? If such sizes worked for creatures which ruled the Earth for tens of millions of years, then why would not some species of elephant or rhinoceros have evolved to such a size again? What kinds of problems, if any, would sauropod sizes entail in our world...

"It's obviously still inside the rock, so we have a few more years of digging ahead of us." Paleontologists in Argentina have discovered the fossilized remains of a 98 million-year-old titanosaur that they say may be from the largest animal ever to walk the earth. A team of researchers with Naturales y Museo, Universidad de Zaragoza, and Universidad Nacional del Comahue actually found the remains in 2012, but excavation work only began in 2015, according to paleontologist Jose Luis Carballido of the Museo Egidio Feruglio. In a new report published in the journal Cretaceous Research, the group lays out what...

Titanosaurs were the most speciose and widespread group of sauropod dinosaurs, the largest terrestrial animals in Earth history. They reached their peak diversity in the Late Cretaceous after all other sauropod groups vanished, but their early evolution is poorly understood due to a scarcity of well-preserved titanosaur fossils from before the Late Cretaceous, especially outside of South America. In this study, the authors describe a newly-discovered middle Cretaceous titanosaur from southern Africa. The researchers named the new dinosaur Mnyamawamtuka moyowamkia. It is known from a single specimen excavated from a quarry along the Mtuka River in southwest Tanzania. It is...

It is a fairly easy demonstration that nothing any larger than the largest elephants could live in our world today, and that the largest dinosaurs survived ONLY because the nature of the world and of the solar system was then such that they did not experience gravity as we do at all; they'd be crushed by their own weight, collapse in a heap, and suffocate within minutes were they to. A look at sauropod dinosaurs as we know them today requires that we relegate the brontosaur, once thought to be one of the largest sauropods, to welterweight or at most...

Published online: 20 March 2006; | doi:10.1038/news060320-2 Heads up: the dinosaur with the longest neck This creature was way out in front. Michael Hopkin At eight metres, Erketu ellisoni's neck may be a record breaker. © Jason Brougham Talk about sticking your neck out: palaeontologists working in Mongolia have discovered a dinosaur that was far ahead of its peers. The creature had one of the longest necks of all time, measuring a staggering eight metres. Relative to body size, the creature is a contender for the most impressive neck ever, say its discoverers. Although smaller overall than the famous Diplodocus,...

Grass existed on Earth at least 10 million years earlier than was known, based on a new discovery in fossilized dinosaur dung. It's also the first solid evidence that some dinosaurs ate grass. While dissecting fossilized droppings, known as coprolites, researchers found tiny silica structures called phytoliths. They are short, rigid cells that provide support to a plant. This type is found exclusively in grasses. The discovery shows that five types of grass related to modern varieties were present in the Gondwana region of the Indian subcontinent during the late Cretaceous period about 71 to 65 million years ago. Museum...

Thursday, 27 September, 2001, 21:01 GMT 22:01 UK Dinosaur eggs discovered The dinosaurs belong to the group called sauropods, among the largest to walk the planet Six eggs containing the fossils of baby dinosaurs have been found in Argentina. The skulls, which are remarkably well-preserved, provide clues to how dinosaurs' heads developed and evolved. The fossils were found at Auca Mahuevo, Argentina, a site that has previously yielded similar fossils, dating back to some 65-145 million years ago. The dinosaurs are titanosaurs - members of the group of long-necked, long-tailed plant-eaters called sauropods. The first titanosaur was found in 1842. ...

Last Updated: Monday, 15 October 2007, 23:32 GMT 00:32 UK 'Giant dino' found in Argentina The plant-eater's skeleton came complete with fossilised leaves Scientists think they have found a new species of giant plant-eating dinosaur, Futalognkosaurus dukei, that roamed the earth some 80m years ago. It would have measured at least 32m (105ft) in height, making it one of the tallest dinosaurs ever found, Argentine and Brazilian palaeontologists say. The skeleton showed signs that its owner had been eaten by predators. The excavation site in Argentina has yielded a series of specimens since the first fossils were found there in...

RIO DE JANEIRO, Brazil (AP) — The skeleton of what is believed to be a new dinosaur species — a 105-foot plant-eater that is among the largest dinosaurs ever found — has been uncovered in Argentina, scientists said Monday.Standing alongside a replica of a neck vertebra more than 3 feet high, scientists from Argentina and Brazil said the find was remarkable because they have recovered the most complete skeletons one of one of these "giants" found so far.They said the Patagonian dinosaur appears to represent a previously unknown species of Titanosaur because of the unique structure of its neck. They...

Rio De Janeiro, Brazil, October 15, 2007 (AP) The skeleton of what's believed to be a new dinosaur species - a 105-foot plant-eater that is among the largest dinosaurs ever found - has been uncovered in Argentina, scientists said Monday. Scientists from Argentina and Brazil said the Patagonian dinosaur appears to represent a previously unknown species of Titanosaur because of the unique structure of its neck. They named it Futalognkosaurus dukei after the Mapuche Indian words for "giant" and "chief," and for Duke Energy Argentina, which helped fund the skeleton's excavation.