It is statements like this that give me pause about Bob Bakker's sanity.
Where in South America, does the atmospheric temperature NOT vary by at least ONE degree? Even at night? Can't happen.
An amphibian moves between water and land. The difference in temperature between the two would vary by at least one degree.
I remember what was said but not who said it. But he appears a lot on Discovery Kids or the kid Dino show.
But his theory is that of virus killing off the dinos not asteroids.