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TOPIC: Dinosaurs


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Arctic Dinosaurs
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Palaeontologists have unearthed a rich variety of dinosaur fossils in an area that would have been one of the most northerly regions of the world in the period just before the giant reptiles died out, between 65 and 68 million years ago.
At the time, the world was far warmer and the continents were still to move to their current positions. Northeastern Russia, where the remains have been found, would have been just 1,000 miles from the North Pole, inside what is now called the Arctic Circle. Average temperatures would have been around 50F (10C).
One of the most common theories for the extinction of the dinosaurs was that the global climate cooled to the point that the animals could not survive. But the new discovery suggests dinosaurs were capable of adapting to cold conditions.

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Paluxysaurus jonesi
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The official State Dinosaur of Texas is up for a new name, based on Southern Methodist University research that proved the titleholder has been misidentified.
State Rep. Charles Geren of Fort Worth filed a resolution Jan. 7 to change the name of the state dinosaur from Pleurocoelus to Paluxysaurus jonesi to correctly name the massive sauropod whose tracks and bones litter the central Texas Jones Ranch. Peter Rose is the scientist behind the name change: His master's level study of dinosaur bones at SMU eventually led him to dispute the long-accepted notion that the large, sauropod bones found in and around the Paluxy River near Glen Rose, Texas, were the same as Pleurocoelus bones first found in Maryland in the late 1800s.

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RE: Dinosaurs
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Scientists in China say they believe a group of dinosaur fossils discovered in the east of the country could be the largest collection ever found.
The researchers, from the Chinese Academy of Sciences, say they have unearthed 7600 dinosaur bones since March in Shandong province.
Most of the bones date back to the late Cretaceous period which is around the time when dinosaurs became extinct.


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The remains of an enormous platypus have been found in China amongst what is believed to be the largest group of fossilised dinosaur bones ever discovered.
Palaeontologists have dug up more than 7,000 bones in 15 separate areas in Zhucheng City, known locally as Dinosaur City, in Chinas eastern Shandong province.

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An extensive survey of dinosaur skulls adds to the evidence that Tyrannosaurus rex had a killer sense of smell, and finds that the earliest known birds were much better at sniffing out prey than their descendents.

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How Swell Was The T Rex Sense Of Smell?
We know a lot about the lifestyles of dinosaur - where they lived, what they ate, how they walked - but not much was known about their sense of smell. Until now.

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Contrary to popular belief, polar dinosaurs may not have travelled nearly as far as originally thought when making their bi-annual migration.
University of Alberta researchers Phil Bell and Eric Snively have suggested that while some dinosaurs may have migrated during the winter season, their range was significantly less than previously thought, which means their treks were shorter. Bell and Snively's findings were recently published in Alcheringa: An Australasian Journal of Palaeontology.
The idea that these animals may have travelled distances nine times further than mule deer or four times those of wildebeest would have made them the greatest migrators in history. "There are strong opinions regarding dinosaur migration, but we decided to take a different approach, looking at variables such as energy requirements," said Bell. Their research led them to suggest that migrating dinosaurs could have travelled up to 3,000 kilometres in a round trip-lasting perhaps up to six months-half of the distance suggested previously.

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One of the smallest dinosaur skulls ever discovered has been identified and described by a team of scientists from London, Cambridge and Chicago. The skull would have been only 45 millimetres in length. It belonged to a very young Heterodontosaurus, an early dinosaur. This juvenile weighed about 200 grams, less than two sticks of butter.
In the Fall issue of the Journal of Vertebrate Paleontology, the researchers describe important findings from this skull that suggest how and when the ornithischians, the family of herbivorous dinosaurs that includes Heterodontosaurus, made the transition from eating meat to eating plants.

"It's likely that all dinosaurs evolved from carnivorous ancestors. Since heterodontosaurs are among the earliest dinosaurs adapted to eating plants, they may represent a transition phase between meat-eating ancestors and more sophisticated, fully-herbivorous descendents" - study co-author Laura Porro, a post-doctoral student at the University of Chicago.

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The bony crests that straddled the heads of some duck-billed dinosaurs may have been used to produce deep, haunting bellows, according to new research.
Medical scans of the dinos' nasal passages suggest thatlike human teenagersthe animals' voices may have changed as they aged, and that the dinos had the ability to recognize individuals based on their voices alone.

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Bizarre Dinosaur Lured Mates With Bony Adornments
The scary spikes on a newly discovered horned dinosaur species may look bizarre today, but they were sexy 72 million years ago, new research suggests.
Dubbed Pachyrhinosaur lakustai, the creature is related to Triceratops.
The dinosaur has a big bone on its nose to support a large central horn, two small spiky bones above its eyes, and three spikes in the middle of its forehead, the largest of which is about a 0.3 meters in length.

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