| 1 |
234 seconds
|
14
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Deja Edwards was born on July 5th.
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| 2 |
234 seconds |
15 |
Victoria Huson was born on February 10th.
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| 3 |
233.9 seconds
|
100,000
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The first homo sapiens roamed the earth in Africa.
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| 4 |
231.16 seconds |
18 mya
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Mid-Miocene era. Most of the Earth was occupied by huge grassland. First horses appeared, as well as generally familiar, modern-looking animals.
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| 5 |
233.104 seconds
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50 mya
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First variant of "legged-whales" inhabited Central Asia, prominently Pakistan.
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| 6 |
231.16 seconds
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65 mya
|
One of the most known mass extinctions amongst people. It took out 80-90% of marine organisms and 85% of land organisms. This is when the dinosaurs go extinct.
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| 7 |
230.7 seconds
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130 mya
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The years of flower plants, including one in particular called Angiosperm which was a flowering plant that attracted insects to spread pollen. One of the factors that started co-evolution.
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| 8 |
227.53 seconds
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200 mya
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Around this time is when the first early mammals appeared. They were small, and not diverse in function or appearance.
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| 9 |
224 seconds
|
220 mya
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The mid-Triassic period of the Mesozoic era, this is when the first dinosaurs appeared and developed. At the time, forest was dense with foliage.
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| 10 |
223 seconds
|
250 mya
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Permian-Triassic extinction event. Happened at the beginning of the Triassic period and the very end of the Permian era, hence the name. Some parts of Earth were covered with a mile deep of lava.
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| 11 |
221.6 seconds
|
290 mya
|
As the Earth warmed up from the cold of the previous extinction event, the oxygen levels plummeted from 35% to 15%.
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| 12 |
219.6 seconds
|
320 mya
|
Formation of coal, as well as mountains like the Appalachian mountains and the Great Smokey Mountains in the US.
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| 13 |
216.6 seconds
|
350 mya
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Formation of the first forests during the early Devonian period. These forests, however, were small and did not extend over much land, instead staying in small areas.
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| 14 |
215.4 seconds
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374 mya
|
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Mass extinction, taking out 70% of marine organisms. During this time, the surface temperature of the earth dropped about 15 degrees fahrenheit and continued cooling.
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| 15 |
213.3 seconds
|
416 mya
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The earliest vascular plants, insects and coral reefs start to form.
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| 16 |
212 seconds
|
420 mya
|
First fish with jaws, early sharks. In the same group of time, marine organisms began to colonize and discover land.
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| 17 |
211.6 seconds
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443 mya
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Earth's climate stabilizes. First vertebrates appear in ocean.
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| 18 |
209 seconds
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505 mya
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First fossil fish. Marine life grows.
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| 19 |
207 seconds
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542 mya
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Multi-cellular life becomes abundant as well as the basic groups of animals first appear.
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| 20 |
201.6 seconds
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570 mya
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Cambrian explosion of diverse life. This is one of the most momentous times of organism development.
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| 21 |
194.2 seconds
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650 mya
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The first great extinction where 70% of plants of the Pre-Cambrian period were destroyed.
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| 22 |
184.2 seconds
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800 mya
|
First of four global ice-ages, this time period is rightly called "Snowball Earth" because of the blanket of ice that covered most of the globe.
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| 23 |
179.2 seconds
|
1000 mya
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The first of multi-cellular organisms appear.
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| 24 |
174.3 seconds |
1100 mya
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One of the first "proper" supercontinents named Rodinia was first formed.
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| 25 |
159.4 seconds |
1200 mya
|
Spore gamete was first formed, enabling reproduction.
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| 26 |
154.1 seconds |
1500 mya
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The first Eukaryotic cells appear.
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| 27 |
134.4 seconds |
1600 mya
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Oxygen levels build above 10%
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| 28 |
133.3 seconds |
2000 mya
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300 kilometer meteor impact in South Africa, creating the Vredefort crater. This crater is known to be one of the biggest crater on earth.
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| 29 |
84.6 seconds |
3000 mya
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The sun brightens 80% than what it is currently today.
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| 30 |
49.8 seconds |
3700 mya
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First evidence of life.
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