A recent discovery in Australia has shown fossil microorganisms dating back 3.4 billion years.
Africa
a dinosaurs tooth
Africa
China
The oldest humanoid fossils were all found in Africa.
south America
Australia has three billion year old exposed land.
Dinosaurs have been found on all 7 continents, even Antarctica.
Early humans first appeared in Africa. The oldest known fossils of early human ancestors, such as Ardipithecus and Australopithecus, have been found in East Africa, indicating that Africa is the continent where early humans originated.
Dromaeosaurs lived on every continent except Australia. However, dromaeosaur fossils have even been found in Antarctica.
So few dinosaur fossils have been found in Antarctica because the entire continent is covered in ice, making it hard to dig and/or search for large fossils.