Pangaea and the arrival of the Oceans
Pangaea formed 240 million years ago. Fish are the most ancient form of life with a history of 450 million years.
Name for a single supercontinent that formed about 240 million years ago.
Present land masses plus their continental shelves can be fitted into this one continent.
4,600 million years ago the Earth was formed.
Sun 5,000 million years old.
A solid iron silicon Mars size projectile would impact planet Earth 4,500 million years ago.
Few fossils found in rocks 4,000 million years ago.
Most stars are members of an initial binary.
Solar planets contain more than 99% of the angular momentum of the Solar system.
Sun contains 99.87% of the mass of the Solar system.
Zircon is actually the oldest known mineral on earth. Samples found from Western Australia are more than 4,400 million years ago