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Fossil of dinosaur ‘killed on day of asteroid strike’ discovered
Scientists believe they have been given an extraordinary view of the last day of the dinosaurs after they discovered the fossil of an animal they believe died that day.


Scientists believe they have been given an extraordinary view of the last day of the dinosaurs after they discovered the fossil of an animal they believe died that day.
The perfectly preserved leg, which even includes remnants of the animal’s skin, can be accurately dated to the time the asteroid that brought about the dinosaurs’ extinction struck Earth 66m years ago, experts say, because of the presence of debris from the impact, which rained down only in its immediate aftermath.
He said: “The time resolution we can achieve at this site is beyond our wildest dreams … This really should not exist and it’s absolutely gobsmackingly beautiful. I never dreamt in all my career that I would get to look at something a) so time-constrained; and b) so beautiful, and also tells such a wonderful story.”
The dig has been filmed for a BBC documentary Dinosaurs: The Final Day with Sir David Attenborough; during which the broadcaster will review the fossil finds. “When Sir David looked at ‘[the leg], he smiled and said ‘that is an impossible fossil’. And I agreed,” Manning said.
He said the team had also discovered the remains of fish that had breathed in impact debris from the asteroid strike, which occurred 1,864 miles (3,000km) away in the Gulf of Mexico.
That and the presence of other debris that rained down for a specific period immediately after the asteroid strike allowed them to date the site much more accurately than standard carbon dating techniques.
Robert DePalma, the University of Manchester graduate student who is leading the Tanis dig, said: “We’ve got so many details with this site that tell us what happened moment by moment, it’s almost like watching it play out in the movies. You look at the rock column, you look at the fossils there, and it brings you back to that day.”
SOURCE: THE GUARDIAN

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