What is Prehistoric Earth?
When Earth was initially created 4.54 billion years ago, it was a drastically different planet from the one we know now. With temperatures high enough to boil water and no oxygen in the atmosphere, Earth was a desolate wasteland. There were no seas and all of the water on Earth was confined to gasses. Nevertheless, the Earth had cooled sufficiently by 3.8 billion years ago for the gasses to descend as rain, gradually filling gorges and basins to form the first seas.
Fossils, rocks, and other geological formations are examples of the geological evidence that prehistoric Earth science employs to recreate former habitats and gain insight into the processes that produced the globe over billions of years. It offers insightful information on the beginnings of life, the growth of ecosystems, and the factors that have shaped Earth’s evolution.
A Brief on Prehistoric Earth
Prehistoric Earth is the time before history was recorded down, from the Earth’s origin around 4.6 billion years ago until the appearance of written records about 5,000 years ago. This enormous period is split up into several geological periods, each distinguished by unique biological, climatic, and geological occurrences. The prehistoric Earth timeline stretches back millions of years to include the formation of our planet and the emergence of the first life forms.
The planet’s surface was modified by geological processes such as plate tectonics, volcanic activity, and erosion during ancient Earth, while the formation of progressively sophisticated living forms was caused by biological evolution. Understanding the Earth’s past and the beginnings of life is made possible by studying the fossil and geological records.
Table of Content
- What is Prehistoric Earth?
- A Brief on Prehistoric Earth
- Hadean Eon (4.6 – 4 billion years ago)
- Archean Eon (4 – 2.5 billion years ago)
- Proterozoic Eon (2.5 billion – 541 million years ago)
- Paleozoic Era (541 – 252 million years ago)
- Mesozoic Era (252 – 66 million years ago)
- Cenozoic Era (66 million years ago – present)
- Conclusion: Brief on Prehistoric Earth
- FAQs – Prehistoric Earth
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