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TOPIC: Dinosaurs
Blobrana


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The duck-billed hadrosaur with long limbs and a soft body had virtually no protection against predators like tyrannosaurs. But the latest research on the plant-eating dinosaur suggests that it grew into adulthood much faster than its predators, giving it superiority in size. Scientists compared growth rate data from the hadrosaur, Hypacrosaurus, to three predators: the tyrannosaur Albertosaurus and its gigantic relative Tyrannosaurus rex, as well as the small Velociraptor-like Troodon.

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Blobrana


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Japanese and Mongolian scientists have successfully recovered the complete skeleton of a 70-million-year-old young dinosaur, a nature museum announced Thursday.
The scientists uncovered a Tarbosaurus - related to the giant carnivorous Tyrannosaurus - from a chunk of sandstone they dug up in August, 2006 in the Gobi Desert in Mongolia, said Takuji Yokoyama, a spokesman for the Hayashibara Museum of Natural Sciences, a co-organizer of the joint research project.

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Blobrana


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An international study, led by the University of Bristol, shows that during their last 50 million years of existence, dinosaurs were not expanding as actively as had been previously thought and that the apparent explosion of dinosaur diversity may be largely explained by sampling bias.

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Blobrana


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One of the largest known dinosaurs, a titanosaurid, once roamed New Zealand about 80 million years ago.
A Havelock North fossil hunter, Joan Wiffen, discovered a vertebra bone in a stream bed in Hawke's Bay in 1999.

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Blobrana


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As news of a remarkably well-preserved cache of dinosaur bones was being heralded in media outlets around the world, the U.S. Bureau of Land Management palaeontologist who had announced the find was taking a breath and urging others to do the same.
No new species were turned up at the 3-month-old site, although a lot of digging is yet to be done. It is within the same Utah/Colorado border region where at least two previously unheard-of dinosaur species were discovered during the past 10 years. Scientists also do not know whether there are helpful data in the bones or if the find is just a nice stone snapshot of the animals whose lives ended there.

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Blobrana


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Parts of a rare mummified dinosaur that has attracted worldwide interest went on display in North Dakota's state museum.
People from across the country and even England gathered Saturday at the Heritage Centre on the state Capitol grounds for the unveiling.

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Blobrana


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A newly discovered batch of well-preserved dinosaur bones, petrified trees and even freshwater clams in southeastern Utah could provide new clues about life in the region some 150 million years ago.
The Bureau of Land Management announced the find Monday, calling the quarry near Hanksville "a major dinosaur fossil discovery."
An excavation revealed at least four sauropods, which are long-necked, long-tailed plant-eating dinosaurs, and two carnivorous ones, according to the bureau. It may have also uncovered an herbivorous stegosaurus.
Animal burrows and petrified tree trunks 6 feet in diameter were found nearby. The site doesn't contain any new species but offers scientists the chance to learn more about the ecology of that time.

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Blobrana


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A partial dinosaur skeleton unearthed in 1971 from a remote British Columbia site is the first ever found in Canadian mountains and may represent a new species, according to a recent examination by a University of Alberta researcher.
Discovered by a geologist in the Sustut Basin of north-central British Columbia 37 years ago, the bones, which are about 70 million years old, were tucked away until being donated to Dalhousie University in 2004 and assigned to then-undergraduate student Victoria Arbour to research as an honours project. She soon realized that the bones were a rare find: they are very well-preserved and are the most complete dinosaur specimen found in B.C. to date. They are also the first bones found in B.C.'s Skeena mountain range.

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Blobrana


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Australian dinosaurs
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A reinterpretation of a 110-million-year-old fossil is shedding light on an enduring mystery: the origin of Australian dinosaurs.
Nathan Smith of the Field Museum in Chicago, Illinois, US, says that the fossil, a single bone, shares features with a large predator called Megaraptor.
Australian dinosaur fossils are few, usually fragmentary and relatively small, and their origins are enigmatic. Their closest relatives seem to come from Eurasia and North America, for example continents that were far from Australia at the time.
But Megaraptor is a species known from fossils discovered in Argentina, and Australia remained joined to South America via Antarctica after the partial break-up of the ancient Pangaea landmass 100 million years ago.

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Blobrana


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A long time ago, a dinosaur named Troodon lived in the area where Alaskas North Slope is today. Troodon was a meat eater that looked like an eight-foot bird, with the mouth and tail of an alligator. It stood on its hind legs and had short, muscular forearms that helped it clamp down on plant-eating dinosaurs, opossum-like creatures, and maybe fish. Compared to other dinosaurs, Troodon had very big eyes.
Troodon also had very big teeth. In fact, the Alaska version of Troodon had such large teeth that a scientist thinks it may have been the largest Troodon on the continent, and the dominant predator of the far north even though it wasnt the biggest meat-eater.

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