-
*1.3 Million years ago
Homo Sapiens are the ancestors of human.
Homo Sapiens are basically modern cavemen. -
-
- 251 Million years ago The earliest period of the Mesozoic Era or the corresponding system of rocks marked down by the first appearance of dinosaurs
-
*200 Million years ago
Most of the dry land on earth was joined into a huge land mass that covered nealry a third of the planet's surface -
- 375 Million years ago This period was the age of the reptiles or like creatures It is the last period of the Paleozoic Era
-
270 Million years ago
Panagaea is the hypothetical supercontinent that included all current land masses -
*375 Million years ago
In geologic time, it as an interval of the Paleozoic Era, that follows Silurian Perion -
*444 Million years ago
Part was in the Paleozoic Era, and a rich variety of marine creatures flourished in the sea. -
- 65.6 Million years ago The last and longest segment of the Mesozoic Era, all of the creatures came together
-
*2.45 Billion years ago
Early bacterial Life introduced oxygen into the earth -
*3.5 Billion years ago
Studies show that a living group of single celled organisms called Archaea may share features with ealy life on earth -
*3.5 Billion years ago
Most multicelluar organisms were common in the Proterzoic Era -
*3.8 Billion years ago
The 1st Eukaryotes enveloped by an acid resistant wall, which were called Acritarchs, which were probaly marine algae -
*4.6 billion years ago
The Earth was formed by collisions in the giant disc-shaped cloud of material that alos formed the sun.
