Precambrian Era
When it Began?
4.6 billion years ago
Biology
Living things
Fungi
Chytrid fungus
Bacteria
Bacteria began using photosynthesis
in order to gain energy
Blue green algae
Lived on land
Arthropods
Worms
Lived in water
protozoa
Jellyfish
Mollusks
Cells
Eukaryotic cells
Lead to the creation of plant and animal cells
What happened in the Precambrian Era?
The Precambrian time was the earliest time period of the history of Earth.
Planet cooled down from the original molten state
Created a crust around the Earth
Oceans were created from the water vapour in the atmosphere.
Main topic
Main topic
Major Geological Events
Crust cooled down, forming a solid crust
Water vapor from the atmosphere
formed oceans.
May have created life with mineral-rich
under-water volcanoes
Facts about the Precambrian Era
- The same rocks, ice sheets, and glaciers that were in the Precambrian period can still be found in certain areas of the world.
- This time period makes up 80% of Earth's geologic record
What is the Canadian Shield known for?
The Canadian Shield is known for its mineral ores. It contains a rich amount of mineral ores, such as gold, nickel, copper, and silver.
The Canadian Shield covers the following places: Sudbury, Ottawa, Iqaluit, Montreal,