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Tag: "dinosaur" at biology news

NC State scientist finds soft tissue in T. rex bones

... findings with at least three other well-preserved dinosaur specimens, one 80-million-year-old hadrosaur and two 65-million-year-old tyrannosaurs. All of these specimens preserved vessels, cell-like structures, or flexible matrix that resembled bone collagen from modern specimens. Current theories about foss...

Revueltosaurus skeleton unearthed at Petrified Forest upsets dinosaur tale

...hrows into question the identity of other presumed dinosaur ancestors known only from teeth, which includes al...on years later than people thought, the picture of dinosaur evolution radically shifts. "Basically, you have two groups that were thought to appear at the same...

Agilent Technologies introduces high-capacity human protein removal system for proteomics research

...hrows into question the identity of other presumed dinosaur ancestors known only from teeth, which includes al...on years later than people thought, the picture of dinosaur evolution radically shifts. "Basically, you have two groups that were thought to appear at the same...

Study: Predatory dinosaurs had bird-like pulmonary system

What could the fierce dinosaur T. rex and a modern songbird such as the sparrow p...r as a graduate student in 1996. They compared the dinosaur skeletons with those of modern birds to draw comparisons of how the soft tissues in the dinosaurs ma...

Skull study sheds light on dinosaur diversity

...e common in North America during the middle of the dinosaur era but were thought to have been pushed to extinc...lineage of sauropods diversified at the end of the dinosaur era, University of Michigan paleontologist Jeffrey Wilson says. Wilson's recent restudy and recons...

Wright bros. upstaged! Dinos invented biplanes

...nadvertent replay of the much earlier evolution of dinosaur flight, say two dino flight experts. According t...tical engineer R.J. Templin, a small early Chinese dinosaur called Microraptor gui used a two-level, biplane wing configuration to fly from tree to tree in the ...

Newly discovered birdlike dinosaur is oldest raptor ever found in South America

...rts The recent discovery of a 90-million-year-old dinosaur in Patagonia demonstrates that dromaeosaurs, a gro...servation," Apestegua adds. A cast of the unusual dinosaur is on public display on the upper floor of The Field Museum in the MacDonald's Preparation Lab. It w...

Did feathered dinosaurs exist?

... collagenous fiber 'meshworks' that reinforced the dinosaur integument." Based on their examination of fossilized remains of dinosaurs with no relationship to birds, they suggest that decomposition of skin can lead to patterns resembling feathers. Birds have been thought to be related to theropod dinosaurs ...

Missing fossil link 'Dallasaurus' found

...ze in them. Later mosasaurs grew as large as their dinosaur brethren, reaching up to 45 feet in length. Until ...ready is on display at the Dallas Museum. Major dinosaur finds are frequently the result of creatures dying in groups through flooding or drought, situations...

'Banana-jawed' fossil mammal linked to rare sound-producing skill

...d this mammal's unusual jaw may come from studying dinosaur models. In particular, he said, a number of museums have built models of dinosaur sound-producing skeletal cavities that have enabled scientists to reconstruct the possible sounds ma...

Duck-billed dino crests not linked to sense of smell

...e brain changed very little from their non-crested dinosaur ancestors, and that the primary region of the sense of smell was located right in front of the eyes ?and coincidentally, that's where it is in birds, crocodiles, mammals and basically all four-legged animals." Evans studied fossils from a group of h...

The world's deepest dinosaur finding - 2256 metres below the seabed

...l. The somewhat rough uncovering of Norway's first dinosaur happened in the North Sea, at an entire 2256 metre...s merely a coincidence that the remains of the old dinosaur now see the light of day again, or more precisely, parts of the dinosaur. The fossil is in fact just...

FSU biologist says new dinosaur is oldest cousin of Tyrannosaurus rex

...ologist Gregory M. Erickson sliced up some ancient dinosaur bones uncovered in China to help an international ...eberg in that area. "China has been a hot spot for dinosaur fossils since the 1990s," he said. Widely publicized research by Erickson –?who also is known as an...

Tyrannosaur survivorship -- tough times for teens

A massive dinosaur death bed in Alberta has helped map out the animal...standardized ecological life table for a non-avian dinosaur population. They selected fibulae or metatarsals from individuals and used growth line counts to est...

Large dinosaurs were extremely hot in their day, UF study finds

...ine at about 108 degrees. Researchers determined dinosaur temperatures -- long a subject of debate in biolog...available fossil data on the growth rates of eight dinosaur species. Using a mathematical formula, they produced the first prediction of dinosaur body temperatu...

Trotting with emus to walk with dinosaurs

...th emus, say paleontologists studying thousands of dinosaur footprints at the Red Gulch Dinosaur Tracksite in ...he Middle Jurassic. "We don't have any documented dinosaur bones and teeth from that period in North America, except for some very scrappy material from Mexico...

Ancient birds flew on all-fours

...squirrels." The first fossil of the Jurassic-era dinosaur Archaeopteryx lithographica was discovered in Germany in 1861, two years after Charles Darwin published his theory of evolution in On The Origin of Species. Since then, eight additional specimens have been unearthed and Archaeopteryx is considered t...

Good times ahead for dinosaur hunters, according to U of Penn scientist's dinosaur census

The golden age of dinosaur discovery is yet upon us, according to Peter Dodso... to be found. His findings also add evidence that dinosaur populations were stable, and not on the decline, in the time shortly before their extinction 65 mill...

Old dinosaur research leads to new honor

... grantee Robert Reisz discovering the oldest known dinosaur embryos and the oldest known reptile that stands o...ost recent discovery ?finding 190-million-year-old dinosaur embryos in South Africa in 2005 ?is part of a time period that is about 100 million years younger th...

Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex

...suggesting the presence of birdlike protein in the dinosaur bones. The mere existence of such exceedingly a... get sequences," he said. In addition to the seven dinosaur sequences, Asara and his colleagues isolated and sequenced more than 70 protein fragments from a 16...

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