Dinosaurs were well on their way out long before the asteroid impact. From what I’ve read the number of species had dwindled to a tiny fraction of what they were a million years before.
Climate change probably played a big part. Also there’s evidence that there may have been some kind of intense radiation burst from space around that time as well.
As Bob Bakker says “I don’t buy that an asteroid could take out a T-Rex but leave a turtle untouched”.
Yah.. I remember that the guy with the ponytail (Robert Bakker) argued that toward the end of the cretaceous land bridges formed between continents that had been isolated (hence their fauna isolated) for over 100M yrs.. diseases wiped out most species, 90% of the dinos were triceratops at the end..
Yeah that’s right I don’t remember hardly any dinosaurs around when that asteroid hit.