Sentences with phrase «by palaeontologists»

Jørn Hurum, a palaeontologist at the Natural History Museum at the University of Oslo, whose classification of the fossil he called «Ida» has come under fire, says that such a system, if adopted by palaeontologists, «would be fantastic».

The fossils clearly show a small dinosaur that had flight feathers covering its legs, as well as tail and arms, forming an extra pair of wings never before seen by palaeontologists.

Discovered in northern China and acquired recently by palaeontologists from a Chinese fossil dealer, it is about 50 centimetres long and lived 160 million years ago, a few million years before Archaeopteryx graced the skies.

Now a detailed study led by palaeontologists Dean Lomax (The University of Manchester) and Professor Judy Massare (State University of New York), has re-examined and compared Protoichthyosaurus and Ichthyosaurus.

The Burgess Shale (part of the Stephen Formation) was discovered by palaeontologist Charles Walcott in 1909, and since then has been a scientific window into the rapid diversification of life in the early Cambrian some 505 million years ago that is known as the Cambrian Explosion.

Not exact matches

By 1967, the teachings of the Jesuit palaeontologist Fr.

Step - by - step, palaeontologists can see the switch from peg - like reptilian teeth to the differentiated teeth of mammals (incisors, canines, molars).

Daniel Fisher, a palaeontologist at the University of Michigan in Ann Arbor and an author of the latest study, reanalysed the tusk and agrees that the marks were probably caused by butchering, most likely to extract the roughly 7 kilograms of nutritious tissue that would have been found inside.

Fred Spoor, a palaeontologist at University College London who wrote an accompanying News and Views article on the Nature study, speculates that the two species may both have been able to thrive side - by - side because they might not have directly competed for food, shelter and territory.

Palaeontologists have found other hints that animals had begun to eat each other by the late Ediacaran.

The international team, including palaeontologist from The University of Manchester, found a new set of trace fossils left by some of the first ever organisms capable of active movement.

Ironically, Ager argues against catastrophism for mass extinction events, preferring the more gradualistic scenario favoured by many palaeontologists.

Shipp invested time and money to excavate and prepare the bones, aided by volunteers and palaeontologists including the PLOS ONE study co-authors Chris Ott and Peter Larson.

Originally dubbed Palaeopotorous priscus, Latin for» [very] ancient», «ancient rat - kangaroo», by the now eminent Australian palaeontologists Prof. Tim Flannery (University of Melbourne) and Dr Tom Rich (Museums Victoria), the importance of these remains was suggested in their first unveiling to science.

Acrotholus was identified by a team comprising of palaeontologists Evans, of the Royal Ontario Museum; and Ryan, of The Cleveland Museum of Natural History; as well as Ryan Schott, Caleb Brown, and Derek Larson, all graduate students at the University of Toronto who studied under Evans.

Because the Daohugou Biota and the much better studied Jehol Biota are similar in preservational mode and geographic location, but separated by tens of millions of years, they give palaeontologists an outstanding, even unique, opportunity to study changes in the fauna of this region over a significant span of geological time and an important period in vertebrate evolution.

In terms of its regal name, T. rex now has a rival in Rhinorex condrupus, a new dinosaur described by US palaeontologists.

A Swiss - American team of palaeontologists headed by Torsten Scheyer and Carlo Romano from the University of Zurich demonstrate in their new study that the food nets during the Early Triassic did not recover in stages.

By IAN ANDERSONOver the past decade, palaeontologists and hardy volunteers have been painstakingly blasting and drilling into the base of a 90 - metre - high cliff in a remote part of the rugged coast of southeastern Australia — the only dinosaur mine in the world.

Since these were discovered in the 1850s, palaeontologists have assumed they were the remains of the world's oldest trees, but nobody had confirmed they actually were trees by finding the trunk and branches — until now.

by Andrew Cuff * 1 Introduction: One of the biggest challenges palaeontologists face is how to reconstruct whole animals from their fossils.

The ancient fossil of a 40 million - year - old «walking whale» has been unearthed by Peruvian palaeontologists.

Palaeontologists test theories of evolutionary relationships by predicting the nature of intermediate forms that might (with luck) be found — a recent example is the feathered «dino - bird» from China, which corresponded quite nicely with Heilbrunner's predicted precursor for Archaeopteryx from 1912 or so.

But when he proposes links between his own historical field and that of climate science he drops all scholarly standards and quotes any old conference paper or telephone conversation he feels like; mad activists and conspiracy theorists like Oreskes and Powell; or Mark Maslin, a professor - cum - company director who combines his job at my old university as palaeontologist or geographer or climatologist (all descriptions of his expertise taken from «the Conversation») with that of director of Rezatec Ltd, a company set up by the Royal Society as a «Leading provider of data - as - a-service geospatial data analytics» to serve those who may be worried to death by forecasts of eco-doom to be found in the books and articles of Mark Maslin.