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Dinosours and Fossils

  • US scientists find oldest fossil tracks of legged animal (AFP) - AFP - US scientists have found the oldest fossilized tracks of a tiny legged animal, from 570 million years ago, that push back the advent of more complex creatures on Earth by some 30 million years, a report said Sunday.
  • Catastrophe Killed Dinosaur Herd, New Species Emerges (LiveScience.com) - LiveScience.com - A catastrophic event 72.5 million years ago left a herd of giant, horned dinosaurs buried to become fossils. Now scientists have identified the extinct creatures as a new species.
  • Ancient Microbes Hint at Life's Limits (SPACE.com) - SPACE.com - Looking for fossils in old rocks is a tough job. Body parts degrade over the years, and the older the rock, the less likely it will be that you will find any evidence that life was once there. One question facing scientists is: Just how far back in time can we go before the traces of life are completely lost?
  • Dinosaur breathed like a modern bird (Reuters) -

    Palaeontologist Paul Sereno from Chicago University shows a replica of skull of a carnivorous dinosaur discovered in Canadon Amarillo, in the Argentine province of Mendoza, September 29, 2008. The palaeontologists said the specimen was part of the evolutionary change from carnivorous dinosaurs to birds and measured six or seven meters in length by three or four high, walked on two legs, like the Tyrannosaurus Rex, but much smaller. (Paulo Paez/Reuters)Reuters - Scientists have unearthed the remains of a large meat-eating dinosaur with a breathing apparatus much like a modern bird, fortifying the link between birds and dinosaurs and helping to explain the evolution of birds' unique system of breathing.


  • Bus-Sized Dinosaur Breathed Like Birds (LiveScience.com) -

    Flesh rendering of the 85-million-year-old predator dinosaur Aerosteon riocoloradensis, meaning 'air bones from the Rio Colorado,' discovered in Mendoza Province, Argentina, with the body wall removed to show a reconstruction of the lungs (red) and air sacs (other colors) as they might have been in life. Scientists have unearthed the remains of the large meat-eating dinosaur with a breathing apparatus much like a modern bird, fortifying the link between birds and dinosaurs and helping to explain the evolution of birds' unique system of breathing. (National Geographic Society/Todd Marshall/Handout/Reuters)LiveScience.com - A huge carnivorous dinosaur that lived about 85 million years ago had a breathing system much like that of today's birds, a new analysis of fossils reveals, reinforcing the evolutionary link between dinos and modern birds.


  • Skull of Prehistoric Giant Goose with Teeth Found (LiveScience.com) - LiveScience.com - Scientists have found a new huge and well-preserved fossil of a goose and duck relative that swam around what is now England 50 million years ago flashing sharp, toothy smiles.
  • Dinosaur Spills His Guts (LiveScience.com) - LiveScience.com - An analysis of the gut contents from an exceptionally well-preserved juvenile dinosaur fossil suggests that the hadrosaur's last meal included plenty of well-chewed leaves digested into tiny bits. The fossil, Brachylophosaurus canadensis aka "Leonardo," is the second well-substantiated case in which the gut contents of a plant-eating dinosaur have been revealed, said Justin S. Tweet, who was a graduate student at the University of Colorado at Boulder when he studied the fossil with colleagues there including paleontologist Karen Chin. ...
  • US-SCIENCE Summary (Reuters) - Reuters - The sun's winds are less blustery than they used to be, NASA said on Tuesday, revealing data from a solar probe that promises new insights about Earth's local star but poses few if any consequences for humans -- unless you're an astronaut.
  • Researcher finds tiny dino in world of giants (Reuters) -

    An artist's drawing of Albertonykus borealis, North America's smallest dinosaur, at the Department of Biological Sciences at the University of Calgary September 23, 2008. The dinosaur is 70 million years old, the size of a chicken, and looks like an animal created by 'Dr. Seuss.'. (Todd Korol/Reuters)Reuters - A Canadian researcher has discovered what is believed to be North America's smallest dinosaur, a 70-million-year-old chicken-sized beast that was also unusual for its diet of insects.


  • Fish Fingers: Your Digits Used to Be Fins (LiveScience.com) - LiveScience.com - An ancient fish sported something like fingers that were the precursors to our own digits, according to an analysis of a new fossil skeleton. "It's really the last piece of evidence to say fingers are not new. They were really present in fish," said lead researcher Catherine Boisvert, an evolutionary biologist at Uppsala University in Sweden. The fossilized skeleton belonged to Panderichthys, a predatory fish that spanned up to 4 feet (130 cm) and likely dwelled in shallow waters where it inched along the muddy bottom about 385 million years ago. ...
  • Navigating by the Stars (SPACE.com) - SPACE.com - Astronomy is the oldest of the sciences, and quite possibly the oldest use of astronomy is navigating by the stars. This craft dates from prehistoric times among humans, and is even practiced by certain animals.
  • ND researchers hope to find complete croc skeleton (AP) -

    This photo taken on Wednesday Sept. 17, 2008 and released by the North Dakota Geological Survey, shows teeth and scutes from a 60-million-year-old crocodile fossil. Researchers are hoping a large cache of ancient crocodile bones in western North Dakota will yield the state's first complete croc skeleton. (AP Photo/North Dakota Geological Survey)AP - Researchers are hoping a large cache of ancient crocodile bones in western North Dakota will yield the state's first complete croc skeleton.


  • Hopes that Australian dinosaur find is new species (AFP) -

    Australian scientists were hopeful Tuesday that two tonnes of bones found in the country's northeast are the remains of a new species of dinosaur. Amateur paleontologist David Elliott, from the Australian Age of Dinosaurs Institute which organised the dig, said the new bones were considered as too small to belong to 20-metre (66-foot) long Matilda.(AAD)AFP - Australian scientists were hopeful Tuesday that two tonnes of bones found in the country's northeast are the remains of a new species of dinosaur.


  • Lucky break allowed dinosaurs to rule Earth: study (Reuters) -

    This images provides a montage of the skulls of several reptiles known as crurotarsans -- cousins of today's crocodiles -- that were the main competitors of dinosaurs from 230 to 200 million years ago during the late Triassic period. Thanks to a big stroke of luck 200 million years ago, dinosaurs beat out a fearsome group of creatures competing for the right to rule the Earth, scientists said on September 11, 2008. (Stephen Brusatte/Columbia University/Handout/Reuters)Reuters - Thanks to a big stroke of luck 200 million years ago, dinosaurs beat out a fearsome group of creatures competing for the right to rule the Earth, scientists said on Thursday.


  • Why Dinosaurs Ruled: Just Plain Luck (LiveScience.com) - LiveScience.com - Dinosaurs are often seen as unlucky, having been wiped out by an asteroid. But they dominated Earth for more than 160 million years, evolving into a wild array of body types and sizes suited for many different ecological niches. Scientists previously thought that it was this evolutionary diversity that enabled the dinosaurs' reign, allowing them to out-compete similar groups of reptiles, but a new study, detailed in the Sept. 11 issue of the journal Science, shows that it was really just a matter of luck. ...