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A NEST OF DINOSAUR EGGS

 
 
Reply Fri 14 Nov, 2008 03:30 pm
researchers in alberta/canada have found a unique nest of dinosaur eggs .
the alberta/montana area is rich in dinosaur and other fossil finds .

the ROYAL TYRRELL MUSEUM (near where the fossils were found) in drumheller/alberta has the world's most extensive collection of dinosaur fossils and exhibits on prehistoric life .
a visit to the website (link) is most worthwhile :

http://www.tyrrellmuseum.com/

Quote:
Alberta researchers have almost cracked the mystery of what kind of dinosaur built the 77-million-year-old fossilized nest found in Montana near the Alberta border in the 1990s.

The nest was collected along with fragments of a dozen eggs. It belonged to either a caenagnathid or a small raptor called a dromaeosaurid, according to a paper published Thursday in the journal Palaeontology.

Nests of meat-eating dinosaurs like these are rare, but this is "one of a kind," said Darla Zelenitsky, a University of Calgary paleontologist and the lead author of the paper.

"It is the first nest of its kind in the world," she said in a statement.

The nest is about half a metre across, and the eggs were about 12.5 cm long. It was acquired by the museum in 2006 from a private collector, but was wrongly labelled as belonging to the more common hadrosaur, known as the duck-billed dinosaur.

The discovery "tells you a little bit more about how dinosaurs went about to build their nests," said François Therrien, a co-investigator in the study and curator of dinosaur paleoecology at the Royal Tyrrell Museum in Drumheller, which will display the nest.

The female likely dug in the sand, possibly on the shore of a river, to build a mound, then laid her eggs over several days and sat on them.

"It fills in a gap in our understanding of the evolution of birds," he said in an interview with CBC News. "This new discovery of the new nest actually shows that modern birds did not acquire their characteristics suddenly. They actually just inherited structures and features that were present in their ancestors, the meat-eating dinosaurs."

The next step will be to test the egg shells, he said, "specifically, for the chemical composition of the egg shell, because that can tell us a lot of information about the climate that prevailed when this dinosaur laid its eggs."




http://www.cbc.ca/technology/story/2008/11/13/nest-dinosaurs.html
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Mame
 
  1  
Reply Fri 14 Nov, 2008 04:01 pm
@hamburger,
Neat! I love this stuff. Thanks, hamburger.
0 Replies
 
Reyn
 
  1  
Reply Fri 14 Nov, 2008 06:41 pm
@hamburger,
I bet you could make a helluva an omelette with them, eh?
hamburger
 
  1  
Reply Fri 14 Nov, 2008 06:59 pm
@Reyn,
i bet those eggs would be a real "prize" for anyone who likes those chinese "century" eggs !
bon appetite !
hbg

http://declubz.com/blog/wp-content/uploads/2008/08/1000-year-old-eggs.jpeg

we don't have to take a backseat to the chinese when it comes to old eggs !
hamburger
 
  1  
Reply Sun 16 Nov, 2008 10:51 am
@hamburger,
WHAT CAME FIRST : THE EGG OR THE CHICKEN ?

a/t to researchers the new question will be :
what came first : the egg or the dinosauer ?

http://www.livescience.com/animals/081114-chicken-or-egg.html

from the link :

Quote:
By Jeanna Bryner, Senior Writer

posted: 14 November 2008 10:39 am ET

A rare fossilized dinosaur nest helps answer the conundrum of which came first, the chicken or the egg, two paleontologists say.

The small carnivorous dinosaur sat over her nest of eggs some 77 million years ago, along a sandy river beach. When water levels rose, Mom seems to have fled, leaving the unhatched offspring.

Researchers have now studied the fossil nest and at least five partial eggs. The nest is a mound of sand that extends about 1.6 feet (half a meter) across and weighs as much as a small person, or about 110 pounds (50 kg).

"Some characteristics of the nest are shared with birds, and our analysis can tell us how far back in time these features, such as brooding, nest building, and eggs with a pointed end, evolved " partial answers to the old question of which came first, the chicken or the egg," said researcher Francois Therrien, curator of dinosaur paleoecology at the Royal Tyrrell Museum in Alberta, Canada.

The answer?

Well, it’s still unclear whether chicken eggs or chickens came first (the intended question in the original riddle), said Darla Zelenitsky, a paleontologist of the University of Calgary in Alberta who was the first scientist to closely analyze the dinosaur nest.

But interpreted literally, the answer to the riddle is clear. Dinosaurs were forming bird-like nests and laying bird-like eggs long before birds (including chickens) evolved from dinosaurs.

"The egg came before the chicken," Zelenitsky said. "Chickens evolved well after the meat-eating dinosaurs that laid these eggs."

So the original riddle might now be rephrased: Which came first, the dinosaur or the egg? Meanwhile, the new nest provides some of the strongest evidence in North America in favor of the bird-like egg over the chicken.
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