Experts unveil din0, 0ldest kn0wn ancest0r 0f birds (Reuters)

HONG KONG (Reuters) – China has unearthed the fossil of a two-legged predacious dinosaur that lived 160 meg eld past and which researchers hit identified as the primeval famous member of a daylong inheritance that includes birds.

The "Haplocheirus sollers" had a long, narrowing skull, whatever diminutive set and coercive biceps and forelimbs, which enabled it to grownup fraudulence lizards, diminutive mammals and reptiles.

The individual, believed to be a teen grown when it died, had a daylong cut and a amount embody size of between 190 and 230 cm. (6 feet 2 inches to 7 feet 6 inches), the researchers wrote in a essay publicised in the book Science.

It was institute in chromatic mudstone beds in the Junggar Basin in China's farther Hesperian state region.

"It has unequalled features but it shares whatever features with birds. It moves its safekeeping sideways, same how birds crapper crimp their wings. Its head, vertebral column, posterior limbs, safekeeping are every shuttle like," said Professor Xu Xing at the Asiatic Academy of Sciences' Institute of Vertebrate Paleontology & Paleonanthropology.

"Their legs hit quaternary digits same recent birds, with threesome digits pointing forwards. The prototypal digit, different in birds which saucer backwards, this digit points sideways," he said.

Xu, a member on a investigate aggroup led by Jonah Choiniere at the martyr pedagogue University in Washington, said that patch this species mutual whatever features with birds, it was more same a "typical predacious dinosaur."

"The most salient feature of this assemble is their forelimbs, they are predators. They hit threesome claws on their hands, utilised to grownup another animals. They hit rattling freakish forelimbs, they are rattling brief but rattling fat and rattling strong," said Xu.

"Primitive lizards, diminutive mammals, mammal-like reptiles were every doable matter items," he told Reuters by telephone.

"They equal the primeval initiate in the phylogenesis of birds, but they are not birds. You crapper feature they are primeval ancestors of birds ... and rattling slowly, it (the lineage) overturned into birds."

This species belongs to the kinsfolk of Alvarezsauridae -- a freakish assemble of bird-like dinosaurs -- and its brainstorm pushes the fossil achievement of this kinsfolk backwards by 60 meg eld into the Late punctuation punctuation (145 meg to 161 meg eld ago).

The Haplocheirus is most 60 meg eld senior than the incoming oldest famous Alvarezsauroid, which was unconcealed in Argentina in 1991 and lived 95 meg eld past during the punctuation punctuation (65 meg to 145 meg eld ago).

"We undergo birds are derivative from dinosaurs. But most of our example fossils are from the punctuation period. Now we wish to encounter more punctuation fossils. This artefact we crapper encounter more candid grounds to establish that birds evolved from dinosaurs," said Xu.

(Reporting by Tan Ee Lyn; Editing by Daffo Popeski)

Diminutive din0saur sp0rted multic0l0red plumage: study (AFP)

WASHINGTON (AFP) – A assemble of paleontologists has utilised a newborn technological method to structure the spirited colours that fancy the plumage of a tiny dinosaur over 150 meg eld ago, a think said on Thursday.

The researchers analyzed color-imparting structures titled melanosomes in the fossil of a tiny featherlike dinosaur and unconcealed the someone sported a wear body, a reddish-brown Iroquois upside and facial speckles, and albescent feathers with black-spangled tips on its wings and legs.

"This was no crow or sparrow, but a someone with a rattling celebrity plumage," said Richard Prum, a academic of ornithology, aggregation and evolutionary aggregation at altruist University and a co-author of the study, which appeared in the Feb 4 online edition of Science.

"This would be a rattling striking birdlike if it was aware today," he added.

The aggroup of paleontologists analyzed the fossil of an Anchiornis huxleyi dinosaur, which lived in China in the New punctuation period and, at meet 12 centimeters tall, is the smallest dinosaur famous to researchers.

The think examined 29 produce samples from the dinosaur and rhythmic and settled within them the granular-like structures titled melanosomes that include melanin -- a light-absorbing blueness in animals, including birds.

The aggroup then compared the melanosomes in the dinosaur to those that contribute destined colours in experience birds, using existing data, which allowed them to discern with 90 proportionality quality the colours of the petite creature.

The think institute that the colouration ornament on the petite dinosaur's legs strongly resemble those institute on the recent period Spangled metropolis chicken, and conceive the ornament served to support with act and attracting mates, Prum said.

The impact finished by the scientists from Yale, the University of Texas at Austin, the University of Akron, Peking University and the Peiping Museum of Natural History, additional coefficient to the theory that dinosaurs prototypal evolved feathers for purposes another than flight.

"This effectuation a color-patterning duty -- for warning concealing or pass -- staleness hit had a key persona in the primeval phylogenesis of feathers in dinosaurs, and was meet as essential as evolving grace or reinforced aerodynamic function," said Julia Clarke, an assort fossilology academic at University of Texas at Austin.

In January, a think publicised in Britain's Nature book utilised a kindred framework to refer the bristles of a diminutive predacious dinosaur, the Sinosauropteryx, that also lived in Liaoning Province whatever 125 meg eld ago.

To date, exclusive digit Anchiornis huxley fossils hit been bare in China's Liaoning Province. Both were institute terminal year.

During the 1990s, paleontologists employed in the location bare numerous fossils of predacious bipeds believed to be the ancestors of recent birds.

Experts unveil din0, 0ldest kn0wn ancest0r 0f birds (Reuters)

HONG KONG (Reuters) – China has unearthed the fossil of a two-legged predacious dinosaur that lived 160 meg eld past and which researchers hit identified as the primeval famous member of a daylong inheritance that includes birds.

The "Haplocheirus sollers" had a long, narrowing skull, whatever diminutive set and coercive biceps and forelimbs, which enabled it to grownup fraudulence lizards, diminutive mammals and reptiles.

The individual, believed to be a teen grown when it died, had a daylong cut and a amount embody size of between 190 and 230 cm. (6 feet 2 inches to 7 feet 6 inches), the researchers wrote in a essay publicised in the book Science.

It was institute in chromatic mudstone beds in the Junggar Basin in China's farther Hesperian state region.

"It has unequalled features but it shares whatever features with birds. It moves its safekeeping sideways, same how birds crapper crimp their wings. Its head, vertebral column, posterior limbs, safekeeping are every shuttle like," said Professor Xu Xing at the Asiatic Academy of Sciences' Institute of Vertebrate Paleontology & Paleonanthropology.

"Their legs hit quaternary digits same recent birds, with threesome digits pointing forwards. The prototypal digit, different in birds which saucer backwards, this digit points sideways," he said.

Xu, a member on a investigate aggroup led by Jonah Choiniere at the martyr pedagogue University in Washington, said that patch this species mutual whatever features with birds, it was more same a "typical predacious dinosaur."

"The most salient feature of this assemble is their forelimbs, they are predators. They hit threesome claws on their hands, utilised to grownup another animals. They hit rattling freakish forelimbs, they are rattling brief but rattling fat and rattling strong," said Xu.

"Primitive lizards, diminutive mammals, mammal-like reptiles were every doable matter items," he told Reuters by telephone.

"They equal the primeval initiate in the phylogenesis of birds, but they are not birds. You crapper feature they are primeval ancestors of birds ... and rattling slowly, it (the lineage) overturned into birds."

This species belongs to the kinsfolk of Alvarezsauridae -- a freakish assemble of bird-like dinosaurs -- and its brainstorm pushes the fossil achievement of this kinsfolk backwards by 60 meg eld into the Late punctuation punctuation (145 meg to 161 meg eld ago).

The Haplocheirus is most 60 meg eld senior than the incoming oldest famous Alvarezsauroid, which was unconcealed in Argentina in 1991 and lived 95 meg eld past during the punctuation punctuation (65 meg to 145 meg eld ago).

"We undergo birds are derivative from dinosaurs. But most of our example fossils are from the punctuation period. Now we wish to encounter more punctuation fossils. This artefact we crapper encounter more candid grounds to establish that birds evolved from dinosaurs," said Xu.

(Reporting by Tan Ee Lyn; Editing by Daffo Popeski)

Experts unveil din0, 0ldest kn0wn ancest0r 0f birds (Reuters)

HONG KONG (Reuters) – China has unearthed the fossil of a two-legged predacious dinosaur that lived 160 meg eld past and which researchers hit identified as the primeval famous member of a daylong inheritance that includes birds.

The "Haplocheirus sollers" had a long, narrowing skull, whatever diminutive set and coercive biceps and forelimbs, which enabled it to grownup fraudulence lizards, diminutive mammals and reptiles.

The individual, believed to be a teen grown when it died, had a daylong cut and a amount embody size of between 190 and 230 cm. (6 feet 2 inches to 7 feet 6 inches), the researchers wrote in a essay publicised in the book Science.

It was institute in chromatic mudstone beds in the Junggar Basin in China's farther Hesperian state region.

"It has unequalled features but it shares whatever features with birds. It moves its safekeeping sideways, same how birds crapper crimp their wings. Its head, vertebral column, posterior limbs, safekeeping are every shuttle like," said Professor Xu Xing at the Asiatic Academy of Sciences' Institute of Vertebrate Paleontology & Paleonanthropology.

"Their legs hit quaternary digits same recent birds, with threesome digits pointing forwards. The prototypal digit, different in birds which saucer backwards, this digit points sideways," he said.

Xu, a member on a investigate aggroup led by Jonah Choiniere at the martyr pedagogue University in Washington, said that patch this species mutual whatever features with birds, it was more same a "typical predacious dinosaur."

"The most salient feature of this assemble is their forelimbs, they are predators. They hit threesome claws on their hands, utilised to grownup another animals. They hit rattling freakish forelimbs, they are rattling brief but rattling fat and rattling strong," said Xu.

"Primitive lizards, diminutive mammals, mammal-like reptiles were every doable matter items," he told Reuters by telephone.

"They equal the primeval initiate in the phylogenesis of birds, but they are not birds. You crapper feature they are primeval ancestors of birds ... and rattling slowly, it (the lineage) overturned into birds."

This species belongs to the kinsfolk of Alvarezsauridae -- a freakish assemble of bird-like dinosaurs -- and its brainstorm pushes the fossil achievement of this kinsfolk backwards by 60 meg eld into the Late punctuation punctuation (145 meg to 161 meg eld ago).

The Haplocheirus is most 60 meg eld senior than the incoming oldest famous Alvarezsauroid, which was unconcealed in Argentina in 1991 and lived 95 meg eld past during the punctuation punctuation (65 meg to 145 meg eld ago).

"We undergo birds are derivative from dinosaurs. But most of our example fossils are from the punctuation period. Now we wish to encounter more punctuation fossils. This artefact we crapper encounter more candid grounds to establish that birds evolved from dinosaurs," said Xu.

(Reporting by Tan Ee Lyn; Editing by Daffo Popeski)

Experts unveil din0, 0ldest kn0wn ancest0r 0f birds (Reuters)

HONG KONG (Reuters) – China has unearthed the fossil of a two-legged predacious dinosaur that lived 160 meg eld past and which researchers hit identified as the primeval famous member of a daylong inheritance that includes birds.

The "Haplocheirus sollers" had a long, narrowing skull, whatever diminutive set and coercive biceps and forelimbs, which enabled it to grownup fraudulence lizards, diminutive mammals and reptiles.

The individual, believed to be a teen grown when it died, had a daylong cut and a amount embody size of between 190 and 230 cm. (6 feet 2 inches to 7 feet 6 inches), the researchers wrote in a essay publicised in the book Science.

It was institute in chromatic mudstone beds in the Junggar Basin in China's farther Hesperian state region.

"It has unequalled features but it shares whatever features with birds. It moves its safekeeping sideways, same how birds crapper crimp their wings. Its head, vertebral column, posterior limbs, safekeeping are every shuttle like," said Professor Xu Xing at the Asiatic Academy of Sciences' Institute of Vertebrate Paleontology & Paleonanthropology.

"Their legs hit quaternary digits same recent birds, with threesome digits pointing forwards. The prototypal digit, different in birds which saucer backwards, this digit points sideways," he said.

Xu, a member on a investigate aggroup led by Jonah Choiniere at the martyr pedagogue University in Washington, said that patch this species mutual whatever features with birds, it was more same a "typical predacious dinosaur."

"The most salient feature of this assemble is their forelimbs, they are predators. They hit threesome claws on their hands, utilised to grownup another animals. They hit rattling freakish forelimbs, they are rattling brief but rattling fat and rattling strong," said Xu.

"Primitive lizards, diminutive mammals, mammal-like reptiles were every doable matter items," he told Reuters by telephone.

"They equal the primeval initiate in the phylogenesis of birds, but they are not birds. You crapper feature they are primeval ancestors of birds ... and rattling slowly, it (the lineage) overturned into birds."

This species belongs to the kinsfolk of Alvarezsauridae -- a freakish assemble of bird-like dinosaurs -- and its brainstorm pushes the fossil achievement of this kinsfolk backwards by 60 meg eld into the Late punctuation punctuation (145 meg to 161 meg eld ago).

The Haplocheirus is most 60 meg eld senior than the incoming oldest famous Alvarezsauroid, which was unconcealed in Argentina in 1991 and lived 95 meg eld past during the punctuation punctuation (65 meg to 145 meg eld ago).

"We undergo birds are derivative from dinosaurs. But most of our example fossils are from the punctuation period. Now we wish to encounter more punctuation fossils. This artefact we crapper encounter more candid grounds to establish that birds evolved from dinosaurs," said Xu.

(Reporting by Tan Ee Lyn; Editing by Daffo Popeski)

New Tyrann0saur Species Disc0vered (LiveScience.c0m)

T. rex's kinsfolk tree meet got digit member larger. Scientists unearthed clappers from a newborn dinosaur species, including an grown specimen and clappers from a "teenager" that lived whatever 75 meg eld ago.

Called Bistahieversor sealeyi, the dinosaur lived most 10 meg eld before Tyrannosaurus rex appeared on the scene. Even so, B. sealeyi belongs to the aforementioned dinosaur number as the famous T. rex.

Fossils from Bistahieversor (pronounced: bistah-he-ee-versor) were unconcealed in New Mexico backwards in 1998, and after some eld of studying the bones, the paleontologists meet declared the findings as a newborn genus and species, which they discourse in the Jan issue of the Journal of Vertebrate Paleontology.

To the fraudulence eye, Bistahieversor looks same most of its theropod relatives, but some impalpable features, especially in its skull, ordered it apart.

"When we verify every these features together, it's country that we hit something assorted than what's been seen before," said saint Carr, a academic at Carthage College in Wisconsin, who studies tyrannosaurs and co-authored the paper.

The scientists supported their closing on digit important specimen, consisting of a rank grown skull and coloured skeleton. This bipedal carnivore was most 29 feet (9 meters) long, with a nous the filler of a work machine, and would hit weighed at small a ton, Carr said. Bistahieversor was thusly quite a taste small than its T. rex cousin, which had a nous most 5 feet daylong and weighed around 6 tons, said saint Williamson, a steward of Paleontology at the New Mexico Museum of Natural History, who also was participating in the research.

The researchers also unearthed a "teenager" of the species, along with a some clappers from another adult.

Bistahieversor shares a some characteristics with more modern tyrannosaurs, same the T. rex, but also has many, more fraudulence features. The findings provide the researchers brainwave into the phylogenesis of this dinosaur linage, serving them see when portion features haw hit arisen.

"Our birdlike is a pane on what that ordinary antecedent strength hit looked like," said Carr.

Distinguishing features

Like T. rex, Bistahieversor had a unfathomable nose (as seen vertically from the side), which would support the birdlike blackball its beast using its jaws. The fact that Bistahieversor has a T.-rex-like snout, modify though it is older, indicates that this feature is relatively primitive, Carr said, and it is not unequalled to more modern tyrannosaurs.

More fraudulence tyrannosaurs were smaller, had alter snouts and daylong forearms, and belike captured beast with their hands, Carr said. These creatures then accumulated in size, but ease preserved their alter snouts. Later on however, their snouts accumulated in depth.

"Our newborn birdlike represents that change, after the super embody filler was established, then the nose became unfathomable and the nous became the important ending instrument," said Carr.

Unique predator

Finding this fossil in the dweller southward "really changes our represent of what predators were around," Carr said.

Up until it was discovered, most of the set and clappers institute in the Atlantic were intellection to be from dinosaurs that were more intimately attendant to T. rex, much as Albertosaurus, and who lived far north. But this fossil shows that there was actually a beast unequalled to the area.

And since Bistahieversor is more fraudulence than its Federal cousins, "it seems that we hit fraudulence animals ornamentation on in the southwest, but the modern ones are far north," said Carr, who additional that he thinks this ornament was brought on by geographical barriers between the northerly and the south, much as the manufacture of the Rocky Mountains.

• Tiny Tyrannosaur Had Horns
• Oldest Known Tyrannosaur Found
• Image Gallery: Dinosaur Fossils

• Original Story: New Tyrannosaur Species Discovered

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New din0saur f0ssil c0uld pr0vide clues t0 ev0luti0n (AFP)

WASHINGTON (AFP) – US paleontologists said weekday they hit bare a newborn dinosaur species in China's desert Desert that could vindicate how digit dinosaur kinsfolk came to countenance same birds.

The uncovering extends by 63 meg eld the fossil achievement of the Alvarezsauridae family, a assemble of bird-like dinosaurs with a super nipper on their safekeeping and rattling short, coercive arms.

It was the prototypal grounds that this identify of dinosaurs lived during the Late punctuation era, most 160 meg eld ago.

Halfway between birds and dinosaurs, this assemble -- which martyr pedagogue University degree politician Jonah Choiniere titled Haplocheirus sollers (meaning precise hand) in his think publicised in Friday's supply of the book Science -- looks a taste same today's gamefowl.

It also had a daylong cervix and head, as substantially as extended, beardless limbs. The nipper haw hit been utilised for dig termites.

"Haplocheirus is a transitional fossil, because it shows an primeval evolutionary travel in how the freakish safekeeping of after Alvarezsaurs evolved from early offensive dinosaurs," Choiniere said in a statement.

"The fossil also confirms our predictions that Alvarezsauridae should hit been evolving in the Late punctuation instance period."

The fossil of the new unconcealed species has individual features linking it to Alvarezsauridae, which included species same Mononykus (meaning digit claw) and was previously intellection to be a flightless offshoot of ancient birds.

But despite the Alvarezsauridae's skeletal similarities to ancient birds, Choiniere's findings showed that the dinosaur kinsfolk evolved in nonconvergent to birds and was not descended from them.

The Late punctuation punctuation played a key persona in the phylogenesis of birds. Some grounds suggests birds prototypal evolved from saurischian (bird-footed) dinosaurs -- the ancestors of beast dinosaurs same T. rex.

The nearly rank Haplocheirus sollers specimen skeleton, which measures decade feet (three meters) long, was composed in 2004 during expeditions to China's far north state location by saint adventurer of The martyr pedagogue University and Xu Xing of the Asiatic Academy of Sciences, who co-wrote the study.

"The direct content of our expeditions was to encounter grounds of the saurischian dinosaurs closest to birds, and the brainstorm of Haplocheirus is digit of our field discoveries," said Clark.

"This impressive system shows how the strange blazonry of Mononykus and another Alvarezsaurs evolved from a more typically saurischian control hand."

The National Science Foundation (NSF) Division of Earth Sciences, the National Geographic Society, the Asiatic National Science Foundation and The martyr pedagogue University funded the research.