I don't think there were any frigid areas in that period. But then came Gorasaurus. Inexplicably, everywhere Gorasaurus went it became suddenly cold.
Weren't dinosaurs cold blooded? (Now, tell me again how they evolved into warm blooded avians...)
Gorasaurus. Is that why he has to use more calories in life, including from iced tea, in everything he does, more than any other 10 given people, combined?