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Articles in 'Geology and palaeontology' (Page 2)
Fossil is best look yet at an ancestor of buttercups
— 1 Apr 2011 15:54Scientists from the United States and China have discovered the first intact fossil of a mature eudicot, a type of flowering plant whose membership includes buttercups, apple trees, maple trees, dandelions and proteas. The 125 million-year-old find, described in this week's Nature, reveals a remarkably developed species, leading the scientists to argue for an earlier origin of the eudicots - and perhaps flowering plants in general…
Long lost cousin of T. rex identified by scientists
— 1 Apr 2011 14:39Scientists have identified a new species of gigantic theropod dinosaur, a close relative of T. rex, from fossil skull and jaw bones discovered in China…
Deep-sea volcanoes don't just produce lava flows, they also explode!
— 29 Mar 2011 16:19Between 75 and 80 per cent of all volcanic activity on Earth takes place at deep-sea, mid-ocean ridges. Most of these volcanoes produce effusive lava flows rather than explosive eruptions, both because the levels of magmatic gas (which fuel the explosions and are made up of a variety of components, including, most importantly CO2) tend to be low, and because the volcanoes are under a lot of pressure from the surrounding water…
Even Canadian rocks are different
— 29 Mar 2011 15:37Canadians have always seen themselves as separate and distinct from their American neighbours to the south, and now they have geological proof…
Researchers reveal remarkable fossil
— 28 Mar 2011 14:52Researchers from China, Leicester and Oxford have discovered a remarkable fossil which sheds new light on an important group of primitive sea creatures…
Fossils record ancient migrations and trilobite orgies
— 17 Mar 2011 18:59Few specimens inspire greater thrills among fossil collectors than a complete trilobite. These ancient arthropods - relatives of lobsters, spiders and insects - went extinct more than 250 million years ago, but are sometimes found in beautifully preserved condition. In rare instances, an entire population of trilobites is found fossilised together. Carlton E. Brett finds evidence for ancient environment and behaviour in these mass graves…
Palaeontologists audition modern examples of ancient behaviour
— 17 Mar 2011 17:29Palaeontologists agree that it's difficult to observe behaviour in fossil specimens that are dead - even extinct - and petrified. One method is to find a modern, living, species that has some similarities to the ancient animal…
Japan quake may have shortened Earth days, moved axis
— 15 Mar 2011 20:59The March 11, magnitude 9.0 earthquake in Japan may have shortened the length of each Earth day and shifted its axis. But don't worry-you won't notice the difference…
Neanderthals were nifty at controlling fire, says CU-Boulder-led study
— 15 Mar 2011 19:47A new study involving the University of Colorado Boulder shows clear evidence of the continuous control of fire by Neanderthals in Europe dating back roughly 400,000 years, yet another indication that they weren't dimwitted brutes as often portrayed…
WHOI experts stress lessons from Japan earthquake
— 14 Mar 2011 20:18While Japan's 8.9-magnitude earthquake and accompanying tsunami represent a devastating natural disaster for the country's residents, scientists should also seize upon the massive temblor as an important learning tool for future quakes around the world, including the Pacific Northwest coast of the United States, according to experts from the Woods Hole Oceanographic Institution (WHOI)…
New dinosaur from Argentina had bird-like breathing system
Mass extinction of large prehistoric animals - a result of human hunting