Scientists now think these dinosaurs were more muscular than previously thought
The scales are still visible on the fossilised skin
Posted on 12/11/2007 6:25:53 PM PST by Fred Nerks
Amazing find of dinosaur 'mummy'
Scientists now think these dinosaurs were more muscular than previously thought
Fossil hunters have uncovered the remains of a dinosaur that has much of its soft tissue still intact. Skin, muscle, tendons and other tissue that rarely survive fossilisation have all been preserved in the specimen unearthed in North Dakota, US.
The 67 million-year-old dinosaur is one of the duck-billed hadrosaur group.
The preservation allowed scientists to estimate that it was more muscular than thought, perhaps giving it the ability to outrun predators like T. rex.
The researchers propose that the dinosaur's rump was 25% larger than had previously been thought. This probably meant more muscle mass and therefore greater acceleration, giving it a greater chance of evading meat-eating dinosaurs in hot pursuit.
Depth and structure
While it has been dubbed a dinosaur "mummy", the dinosaur is actually fossilised into stone.
But unlike the collections of bones found in many museums, this hadrosaur came complete with fossilised skin, ligaments, tendons and possibly some internal organs, according to researchers.
"It's unbelievable when you look at it for the first time," said palaeontologist Phillip Manning from the University of Manchester, UK.
The scales are still visible on the fossilised skin "There is depth and structure to the skin. The level of detail expressed in the skin is just breathtaking."
Dr Manning said there was a pattern of banding to the larger and smaller scales on the skin.
Because it has been fossilised researchers do not know the colour of the skin. But looking at it in monochrome shows a striped pattern. He noted that in modern reptiles, such a pattern is often associated with transitions between different skin colours.
The fossil was found in 1999 and is now nicknamed Dakota. It is being analysed in the world's largest CT scanner, operated by the Boeing corporation.
The machine usually is used for space shuttle engines and other large objects. Researchers hope the technology will help them learn more about the fossilised insides of the creature.
The reptile had no chest cavity, suggesting it had been partially eaten by predators before being "mummified" in unusual conditions: acidic, waterlogged sediments collected around the dinosaur, triggering the rapid deposit of minerals and trapping organic molecules before they decayed.
Scientists now think these dinosaurs were more muscular than previously thought
The scales are still visible on the fossilised skin
“December 3, 2207 | U/A”
I have to question your date, but it is nice article.
;)
Excellent news. Finally science will be able to answer the age-old question about dinosaurs: did they taste like chicken?
Whoops! I’m getting way ahead of myself...
Upon close examination it still breathed after 67 million years.
LOL!
Sorry Fred, couldn't resist. Seriously, this find is amazing, as is the honeycomb structure of the skin!
Must have been buried very quickly when it died. Like in some great flood.
The fossilization is not quite complete on THAT one!
nice find
And this could be another cause of dinosaur extinction, if the female hadrosaur asked a male hadrosaur: "Do these scales make my butt look bigger?"
That bottom photo looks like tire tracks.
“December 3, 2207 | U/A”
WOW, talk about getting the scoop
“Must have been buried very quickly when it died. Like in some great flood.”
maybe something like that mud slide in OR today
Must have been buried very quickly when it died. Like in some great flood.
_____________
Yep. A great flood 67 million years ago. Good call.
"That's a good-looking mummy" to-ask-out-on-a-date-when-you-can't-lick-a-frog ping.
Not unless chicken tastes like rock.
The scales are still visible on the fossilised skin ...
Solution:
bookmark
Well, the story said the soft tissue was “intact.”
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