PBS
The World Before Plate Tectonics
There was a time in Earth’s history that was so stable, geologists once called it the Boring Billion. But the fact is, this period was anything but boring. In fact, it set the stage for our modern version of plate tectonics - and...
PBS
When a Billion Years Disappeared
In some places, the rocks below the Great Unconformity are about 1.2 billion years older than those above it. This missing chapter in Earth’s history might be linked to a fracturing supercontinent, out-of-control glaciers, and maybe the...
SciShow
A Brief History of Life: Survival Is Hard
It turns out life may have gotten its start pretty early in Earth's history, and while the first couple billion years saw several important developments, the period was still dominated by very simple life forms. This is our first...
SciShow
A Brief History of Life on Earth: The Full Series
From the Archean Eon to the Holocene Epoch, check out this SciShow mini-series for a primer about life on earth.
Crash Course
The History of Life on Earth - Crash Course Ecology
With a solid understanding of biology on the small scale under our belts, it's time for the long view - for the next twelve weeks, we'll be learning how the living things that we've studied interact with and influence each other and...
Professor Dave Explains
History of the Earth Part 1: Hadean, Archean, and Proterozoic Eons
If we are going to learn about the Earth, we had better start from the beginning! The Hadean, Archean, and Proterozoic eons will take us all the way from the formation of the Earth, 4.6 billion years ago, until about half a billion years...
Khan Academy
Khan Academy: Ozone Layer and Eukaryotes Show Up in the Proterozoic Eon
Learn about the great oxygenation event that lead to the formation of the ozone layer in this video lecture. Also the arrival of eukaryotes during the Proterozoic Eon. [9:56]
Sophia Learning
Sophia: Proterozoic Age: Lesson 2
This lesson illustrates the proterozoic age of the history of the earth. It is 2 of 3 in the series titled "Proterozoic Age."