Proterozoic Eon
From 2.5 billion to 541 Million years ago
A New Eon
Start of Proterozoic Eon2.6 Billion Years ago
TThe Huronian glaciation marked the beginning of the Proterozoic Eon. Cyanobacteria began to produce large amount of oxygen which was released into the atmosphere.
The Great Oxygenation Event
The GOE was the first major extinction event that nearly wiped out life on Earth. This occured due to a steady rise of oxygen in teh atmosphere from the bacteria taht lived in teh oceans. This event also turened the ocean red due to a chemical reactiosn between iron and oxygen in the ocean.
Paleopro-terozoic Era2.6 Billion to 1.6 Billion years ago
Multicellular life
Mesoproter-ozoic Era1.6 Billion to 1 Billion years ago
Eukaryotes began to spread and out compete other forms of life. The tectonic plates further devoloped with the super continent Columbia splitting apart.
Cryogenian
The last Era before the next Eon. Several large Glacier events occured during this Era. The Earth went trough rapid cooling and heating, each causing large exticntion events. The Equator was covered in ice each time one of these events occured.
Neoprote-rozoic Era1 Billion to 538 Million years ago
New Life
End of Proterozoic Eon538 Million Years ago
Multicellular Ediacara fauna had appeared. They required oxygen for growth and were the precursors of organisms with skeletons. These complex life forms marked the beginning of the next Eon of Geological time.
Facts
This Eon is the start of multicelluar life. All animals and plant started here.
This Eon is the longest portion of Geological time to date.
Scientists can't confirm if the Earth was entirely covered in ice during the Cryogenian or if only the Equator was.
Several Super Continents formed and broke during this Eon. The latest being the Columbia Supercontinent.
Proterozoic Eon
Jonathan Hubert
Created on February 18, 2024
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Transcript
Proterozoic Eon
From 2.5 billion to 541 Million years ago
A New Eon
Start of Proterozoic Eon2.6 Billion Years ago
TThe Huronian glaciation marked the beginning of the Proterozoic Eon. Cyanobacteria began to produce large amount of oxygen which was released into the atmosphere.
The Great Oxygenation Event
The GOE was the first major extinction event that nearly wiped out life on Earth. This occured due to a steady rise of oxygen in teh atmosphere from the bacteria taht lived in teh oceans. This event also turened the ocean red due to a chemical reactiosn between iron and oxygen in the ocean.
Paleopro-terozoic Era2.6 Billion to 1.6 Billion years ago
Multicellular life
Mesoproter-ozoic Era1.6 Billion to 1 Billion years ago
Eukaryotes began to spread and out compete other forms of life. The tectonic plates further devoloped with the super continent Columbia splitting apart.
Cryogenian
The last Era before the next Eon. Several large Glacier events occured during this Era. The Earth went trough rapid cooling and heating, each causing large exticntion events. The Equator was covered in ice each time one of these events occured.
Neoprote-rozoic Era1 Billion to 538 Million years ago
New Life
End of Proterozoic Eon538 Million Years ago
Multicellular Ediacara fauna had appeared. They required oxygen for growth and were the precursors of organisms with skeletons. These complex life forms marked the beginning of the next Eon of Geological time.
Facts
This Eon is the start of multicelluar life. All animals and plant started here.
This Eon is the longest portion of Geological time to date.
Scientists can't confirm if the Earth was entirely covered in ice during the Cryogenian or if only the Equator was.
Several Super Continents formed and broke during this Eon. The latest being the Columbia Supercontinent.