I dunno, I heard somewhere that the whole world basically turned into an oven almost instantly. The vast majority of dinosaurs were dead on day 1.

Edit: I think it was this RadioLab https://radiolab.org/podcast/dinopocalypse-redux

Edit 2: Added the quote. All temps are in F.

Which means that if you were a terrestrial dinosaur anywhere above the ground on the Earth on that day, you would have experienced some heat that is almost unimaginable. Maybe it started at a hundred degrees, because it was June. It was summer. But within minutes, it would have been 300 degrees. 500 degrees. 700 degrees. 900 degrees. Estimates are on that day, temperatures topped out at something like 1,200 degrees. At that temperature, nothing can protect you. Your scales, your fur, whatever you got, it’s not gonna do any good. Your blood will literally start to boil inside your body, and you will die.

Lol I don’t know why but this was so funny to me. 2cm a year is an unsustainable pace.