When Did The Dinosaur Extinction Start?

Dinosaurs faced the worst day of their lives 66 million years ago. With a devastating asteroid hit, the reign of 180 million years came to an end. According to research, Dinosaurs were already in decline up to 10 million years before their extinction, which was caused by the impact of a massive asteroid on Earth.

 The six most prominent dinosaur families were studied by a worldwide team of experts, including researchers from the University of Bristol. During the Cretaceous era, which spanned 150 to 66 million years ago, they discovered that dinosaurs were all developing and spreading at that time.

 Around 75 percent of the Earth’s fauna, including dinosaurs, went off in the same period. ‘The asteroid impacted at tremendous velocity and vaporized,’ Paul adds. It created a massive crater, wreaking havoc on the surrounding environment. A massive blast wave and heat wave erupted, hurling massive amounts of debris into the skies.

‘It caused soot to go all across the planet.’ Although it did not entirely hide the Sun, it did restrict the quantity of light reaching the Earth’s surface. As a result, it affected plant growth.’ The impact of the asteroid on the Yucatán Peninsula wreaked havoc on the surrounding area.

Yucatán Peninsula

Food Chain in Shambles 

The food chain was disturbed and the ecology collapsed gradually. The decrease in plant life had a significant influence on herbivores’ capacity to live, which meant that carnivores would have suffered as well due to a lack of food. Breeding seasons would have been shorter, and circumstances would have been more difficult. On land and in the sea, all living creatures would have been touched in some manner. The asteroid’s impact on the Yucatán Peninsula caused devastation to the area around it.

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 The asteroid cannot be held fully responsible. Earth was going through a period of climatic change before its crash landing. This was making life on our planet more difficult. There was significant volcanic activity in what is now central India, which, while unconnected to the asteroid impact, was producing issues of its own. The Deccan Traps are the name given to the lava outcropping that resulted.

 ‘There were other alterations that were more long-term.’ The continents were migrating about and breaking apart, forming larger oceans and altering ocean and atmospheric patterns throughout the earth. This had a significant impact on the climate and vegetation.’ This, like dominoes, cascaded up the food chain, causing the biosphere to collapse. Plantlife decline had a severe impact on herbivores’ ability to survive, implying that carnivores would have suffered as well owing to a shortage of food.