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New feathered dinosaur - SPORE creature?
Posted: 23 October 2008 05:40 AM   [ Ignore ]
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I swear I first thought this was a joke because this beautiful animal looks VERY like a grand SPORE creature!

http://news.bbc.co.uk/2/hi/science/nature/7684796.stm

New feathered dinosaur discovered
By James Morgan
Science reporter, BBC News

 
Epidexipteryx displayed a surprising combination of physical features

The fossil of a “bizarre” feathered dinosaur from the era before birds evolved has been discovered in China.

Epidexipteryx was very bird-like, with four long ribbon-like tail feathers - probably used in display.

But the pigeon-sized creature shows no sign of the flight feathers seen in other bird-like dinosaurs, according to a report in the journal Nature.

The discovery highlights the diversity of species present in the Middle to Late Jurassic, just before birds arose.

The fossil was described by a team of palaeontologists led by Fucheng Zhang and Xing Xu, of the Chinese Academy of Sciences.

Dr Angela Milner, Associate Keeper of Palaeontology at the Natural History Museum, London, said: “This exquisitely preserved fossil is an exciting and totally unexpected find.

“It shows that feathers were likely being used for ornamentation for many millions of years before they were modified for flight.

“It provides fascinating evidence of evolutionary experiments with feathers that were going on before small dinosaurs finally took to the air and became birds.”

Air of mystery

The discovery adds yet more complexity to the early history of the era when small meat-eating bipedal dinosaurs evolved into birds.

Many feathered dinosaurs have been unearthed at the now famous fossil site in Laioning Province in China. These include the oldest known bird, Archaeopteryx, which lived around 125 million years ago.

Epidexipteryx
The new species is the earliest known to possess ornamental display feathers

Epidexipteryx was a primitive, flightless member of the avialae clade, which lived a little before Archaeopteryx.

It was discovered at the Daohugou beds, in Nincheng County, Inner Mongolia, in sediments which have been dated to around 168-152 million years ago.

Phylogenetic analysis suggests the species is a member of a “bizarre lineage” known as the scansoriopterygidae (meaning “climbing wings”).

The authors also note that it displays “an unexpected combination of characters” seen in several different groups of theropods - the bipedal dinosaurs which eventually gave rise to birds.

Freak experiment

It had a fluffy, down-like covering and sprouted two pairs of enormously long, ribbon-like shafted tail feathers. These were almost certainly used for display - making it the oldest known species to possess these.

But its limbs lacked contour feathers - a feature common to most modern birds.

Dr Zhang said: “Although possessing many derived features seen in birds… [Epidexipteryx] show some striking features… not known in any other theropod.

“The bizarre appearance… indicates that morphological disparity… close to the origin of birds is higher than previously assumed.

“The absence of… limb feathers suggests that display feathers appeared before aerofoil feathers and flight ability.

“It underscores the importance of Jurassic theropods for understanding avian origins.”

Dr Graham Taylor, of Oxford University’s Animal Flight Group, said: “This fossil is the latest in a string of feathered dinosaurs emerging from China, but is especially exciting for two reasons.

“Firstly, whereas other feathered dinosaurs date from after the appearance of the first known bird, this fossil appears to be much closer in age, so it opens a new window on the evolutionary events at the critical transition from dinosaurs to birds.

“Secondly, it has an exquisite set of ornamental tail feathers, suggesting that feathers were used in show even before they were used in flight.”

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Posted: 23 October 2008 05:44 AM   [ Ignore ]   [ # 1 ]
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Doesn’t “feathered dinosaur” = bird?

What makes it a dinosaur and not a bird, other than the time period in which it lived?

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Posted: 23 October 2008 05:47 AM   [ Ignore ]   [ # 2 ]
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MadCarlotta - 23 October 2008 05:44 AM

Doesn’t “feathered dinosaur” = bird?

What makes it a dinosaur and not a bird, other than the time period in which it lived?

It didn’t have the other physical attributes of a true avian yet.  But these DID evolve those attributes later on.

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Posted: 23 October 2008 07:27 AM   [ Ignore ]   [ # 3 ]
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Tastes like chicken, I bet.

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Posted: 23 October 2008 11:22 AM   [ Ignore ]   [ # 4 ]
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Beasjt - 23 October 2008 07:27 AM

Tastes like chicken, I bet.

Just for Neo:

Tank: Here you go, buddy; “Breakfast of Champions.”
Mouse: If you close your eyes, it almost feels like you’re eating runny eggs.
Apoc: Yeah, or a bowl of snot.
Mouse: Do you know what it really reminds me of? Tasty Wheat. Did you ever eat Tasty Wheat?
Switch: No, but technically, neither did you.
Mouse: That’s exactly my point. Exactly. Because you have to wonder: how do the machines know what Tasty Wheat tasted like? Maybe they got it wrong. Maybe what I think Tasty Wheat tasted like actually tasted like oatmeal, or tuna fish. That makes you wonder about a lot of things. You take chicken, for example: maybe they couldn’t figure out what to make chicken taste like, which is why chicken tastes like everything.
Apoc: Shut up, Mouse.

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Posted: 24 October 2008 01:24 AM   [ Ignore ]   [ # 5 ]
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hulitoons - 23 October 2008 05:47 AM
MadCarlotta - 23 October 2008 05:44 AM

Doesn’t “feathered dinosaur” = bird?

What makes it a dinosaur and not a bird, other than the time period in which it lived?

It didn’t have the other physical attributes of a true avian yet.  But these DID evolve those attributes later on.

dinos evolved to many creatures some smaller ones became bird but a t-rex managed to turn into big bird….

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Posted: 24 October 2008 01:56 AM   [ Ignore ]   [ # 6 ]
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You’re absolutely correct silver (imagine!)  T-Rex did evolve into a bird.  (I believe he was also FuzzyButt’s direct G-G-G-G-G-G-etc. Grandfather/mother too.)

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Posted: 24 October 2008 06:09 AM   [ Ignore ]   [ # 7 ]
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Don’t be silly.  Tyrannosaurs didn’t need to develop wings.  They just flew jet planes, until they finally decided to leave Earth on their flying saucers.

MadCarlotta - 23 October 2008 05:44 AM

Doesn’t “feathered dinosaur” = bird?

What makes it a dinosaur and not a bird, other than the time period in which it lived?

Well, first off some dinosaurs were more bird-like than others.  They are divided up into two groups:  Ornithischia and Saurischia.  While the former had a skeletal arrangement that was a lot like that of modern birds, the latter were more like reptiles.  And weirdly, it was the big lumbering dinosaurs who went on four legs who were the more bird-like in that regard, while the ones that we think of as being the fleet-footed two-legged dinosaurs tended to be the more lizard-like.

Then of course there’s the matter of warm-bloodedness.  While we know that birds are, whether or not dinosaurs were warm-blooded is still under considerable debate.

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Posted: 24 October 2008 08:58 PM   [ Ignore ]   [ # 8 ]
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Raptor means bird-like
*Goes in time machine lets pack of velociraptors loose in MOH…
*Sets up new fast food chain KFR

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Posted: 27 October 2008 03:26 PM   [ Ignore ]   [ # 9 ]
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silver caliber magnum - 24 October 2008 08:58 PM

Raptor means bird-like

You’re confusing the English word raptor (a bird of prey) with the etymology of a Latin name. 

Raptor is Latin for “thief”. 

The dinosaur “raptor” is an abbreviated form of the genus “velociraptor”—meaning “swift thief”.  (I don’t think it means “swift bird of prey” because although they may have been feathered, no one ever thought they were birds, and that’s the English meaning of “raptor” anyway).

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Posted: 27 October 2008 03:30 PM   [ Ignore ]   [ # 10 ]
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And of course the oviraptor. I believe, although I may be wrong, that it was called that because the first fossilised remains of one were found next to a nest. So ‘egg thief’.

ETA: Aha!

Its name is Latin for ‘egg seizer’, referring to the fact that the first fossil specimen was discovered atop a pile of what were thought to be Protoceratops eggs, and the specific name philoceratops means “lover of ceratopsians”, also given as a result of this find. In his 1924 paper, Osborn explained that the name was given due to the close proximity of the skull of Oviraptor to the nest (it was separated from the eggs by only four inches of sand). However, Osborn also suggested that the name Oviraptor “may entirely mislead us as to its feeding habits and belie its character.”[1] In the 1990s, the discovery of nesting oviraptorids like Citipati proved that Osborn was correct in his caution regarding the name. These finds showed that the eggs in question probably belonged to Oviraptor itself, and that the specimen was actually brooding its eggs.

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Posted: 27 October 2008 03:45 PM   [ Ignore ]   [ # 11 ]
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Boo - 27 October 2008 03:30 PM

And of course the oviraptor.

You’re right, but I hope that when people refer to a dinosaur as a “raptor” (or, more accurately, as a “‘raptor”—note the apostrophe), they’re not referring to two genera from two different families as one group.

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