Technology

The date when the dinosaur-killing asteroid hit the Earth was pinpointed by scientists

EXPERTS finally succeeded when the dinosaurs met a terrible end at the hands of a killer asteroid that was exploding from the sky.

High-tech X-ray scans and carcasses of fish that died shortly after the collision have revealed what time of year their dominance on Earth ends.

Fish business

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Fish businessCredit: Melanie Trong

We already know that their downfall happened about 66 million years ago.

But we don’t know at what time of year nearly all dinosaurs became extinct.

Sadly, they did not enjoy one last beautiful summer day, nor a winter day in the snow.

According to scientists, it occurs in the spring.

Teams looked at fossilized paddlefish and sturgeon as direct causes of casualties for the so-called Chicxulub meteorite.

It was a period that has troubled archaeologists for a long time, as all flightless dinosaurs, pterosaurs, ammonites, and most marine reptiles perished, while the animals that had Mammals, birds, crocodiles and turtles survive.

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This was key because it would have been the beginning of the Northern Hemisphere’s mating season when it was spring, but the asteroid stopped abruptly.

Meanwhile, it’s fall in the Southern Hemisphere, where many are probably getting ready for winter, hibernation.

“We found that bones register seasonal growth, just like trees, each year growing a new layer on the outside of the bone,” said Sophie Sanchez from Uppsala University.

Senior author Jeroen van der Lubbe, from VU in Amsterdam, added: “The resulting growth rings not only record the life history of fish species, but also record the latest Cretaceous season and thus the season of extinction disaster.”

The study was published in the journal Nature.

Excavation in progress

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Excavation in progressCredit: Melanie Trong

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https://www.thesun.ie/tech/8410352/date-asteroids-killed-dinosaurs-earth/ The date when the dinosaur-killing asteroid hit the Earth was pinpointed by scientists

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