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Fossil of 18ft nodosaur found in 2011 in Alberta’s tar sands goes on display after 7,000 hours of reconstruction work.
110 million years after its death, now the 18ft-long nodosaur – hailed as the best-preserved armoured dinosaur in the world – has been unveiled at a Canadian museum.
"Normally when we find dinosaur fossils we just have a skeleton, the bones. And we have to use our imaginations to reconstruct what they look like,” said Caleb Brown, a postdoctoral researcher at Alberta’s Royal Tyrrell Museum of Palaeontology.
"In this case, we’re very lucky in that it’s not just the bones; we have all of the armour, the osteoderm is preserved, we also have all the skin preserved and it is in three dimensions,” he added
The result offers a glimpse of the dinosaur exactly as it might have been millions of years ago – a behemoth herbivore dotted with protective half-metre spikes, its skeleton encased in body armour and fossilised skin.
Researchers believe that the nodosaur was carried out to sea after being swept away by a flood. As it sank, it likely created an impact crater and was rapidly covered by sediment, said Brown. "Because it was buried so quickly, nothing was able to scavenge the animal and it wasn’t able to decompose very much before it actually got fossilised.”
Millions of years later, the fossil was found in Alberta’s tar sands. In 2011, a heavy-equipment operator was digging through a tar sands mine when he noted that some of the rock had an odd colour and pattern, said Brown.
Source: The Guardian
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