This challenge would be to create map set in a time predating civilization; wild and dangerous. The forests are teeming with animals. The ocean is full of mysterious creatures. And what a selection of features there is for such a time! Dinosaurs! Mammoths! Vast jungles! Dodo bird!

You can try to represent a specific time in the past realistically, or go a completely fantasy route, such as drawing humans coexisting with dinosaurs. Just as long as those humans live in harsh enough conditions, caves, stick huts, etc.

What do you guys think?