Final answer:
Triassic Pangaean climates were characterized by hot and dry conditions, as all major land masses had formed the supercontinent Pangaea with extreme temperatures and dry environment.
Step-by-step explanation:
The climate during the Triassic period, a time when all major land masses collided to form the supercontinent known as Pangaea, was characterized by extreme temperatures and a dry environment.
Given this information, we can determine that the Triassic Pangaean climates were hot and dry. Plants and animals of this period had to evolve adaptations to cope with the aridity, such as waxy leaves or leathery skin to minimize water loss.