Re: "Probably"?
"You also assume that Dinosaurs had only the one massive meteorite hit."
The sheer number of craters around tells us there have been lots - and the size of them would be city/region killers there days. Some of them are "natural bowls" that now hold major cities. (brownie points if you can find the one in Germany)
Even Barringer Crater would have been a city-killer and that wasn't a particularly large chunk of rock (It's one of the best preserved impact craters around and only 50k years old)
Biting the hand that feeds IT
