Geologic Event
- Earth Formed: Earth formed from a solar nebula, which comes from the sun. Earth formed 4.6 BYA
- Oceans Formed: Oceans Formed
- Oldest Rock: The oldest rock is an igneus rock and its name is Precambrian eon. The precambrian eon formed 3.8 BYA
Development of Life
- Prokaryotic cell (simple cell): A group of orginisms whose cells lack a membrane-bound nucleous.3.5 BYA
- Eukaryotic cell (complex cell): An orginism whose cells contain nucleois and other structures enclosed within membranes.2 BYA
- Jellyfish-like animal (multicellular organisms): Jelly fish hacv drifted alnog and to all oceand because of ocean currents 600 MYA
- Arthropods: Arthropods are invertibrate animal.570 MYA
- First Mass Exthingtion: Many animals and other spieces got whipped out and became extinct.544 MYA