Pardon my ignorance but I don't exactly get how dinosaurs were wiped out of the earth by one asteroid.
Were all the dinosaurs located in the same small area? Or did the remaining dinos die from the subsequent winter?
Were all the dinosaurs located in the same small area? Or did the remaining dinos die from the subsequent winter?
Happy to be corrected :)
Another comment I read from a geologist is you see lots of periods where various animals go extinct. But in this case whole clades of plants went extinct. That you don't see.
Start with this.
The size of the asteroid they thought would be the size of Staten Island, NY. The impact would generate a huge shock wave and high temapture, fire everywhere, so killing animals nearby (say 100 miles) within minutes.
Tsunami came next and wiped out everything nearby hundreds of miles+. The smoke and dust covering the air (think of volcano) so sunlight cannot enter Earth so there was a long cold winter, killing even more animals.