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Earth's Timeline - Coggle Diagram
Earth's Timeline
The Cambrian Period (520 MYA)
Abiotic Factors
Oxegyn Levels: 16.6%
Carbon Dioxide Levels: 6077 ppm
Temperature: 27.6 ℃
Day Length: 21.5 Hours
Luminosity: 95.44%
Biotic Factors
Biodiversity: 223
There was little to no life on earth during this time
The Devonian Period (390 MYA)
Oxygen Levels: 23.6%
Carbon Dioxide Levels: 2949 ppm
Temperature: 18.1℃
Day Length: 22.1 Hours
Luminosity: 96.58%
Biotic Factors
Mass Extinction: About 75% of species were lost in a span of 2 million to 29 million years.The exact cause of this extinction is still being debated.
Biodiversity: 985 after extinction
Biodiversity: 1552 before extinction
The Permian Period (275 MYA)
Abiotic Factors
Oxygen Levels: 30.6%
Carbon Dioxide Levels: 325 ppm
Temperature: 12.5℃
Day Length: 22.5 Hours
Luminosity: 97.58%
Biotic Factors
Mass Extinction: The largest extinction in history. There was a 96% loss of species and a 56% loss of genera. At this point in time, we think that this extinction happened because of volcanic eruptions
Biodiversity before extinction: 1084
Biodiversity after extinction: 293
The Triassic Period (225 MYA)
Abiotic Factors
Oxygen Levels: 22.2%
Carbon Dioxide Levels: 972 ppm
Temperate: 17 ℃
Day Length: 22.9 Hours
Luminostiy: 98.05%
Biotic Factors
Biodiversity after extinction: 520
Mass Extinction: The cause of this mass extinction is unknown. Although, it is possible that so many animals died due to volcanic eruptions that could have increased carbon dioxide levels.
Biodiversity before extinction: 739
The Cretaceous Period (110 MYA)
Abiotic Factors
Oxygen Levels: 22%
Carbon Dioxide Levels: 2050 ppm
Temperature: 15.9 ℃
Day Length: 23.5 Hours
Luminosity: 99.10%
Biotic Factors
Biodiversity after extinction: 1401
Mass Extinction: This is one of the most well known extinctions because it marked the end of the dinosaurs. This is because of an asteroid that struck earth 65 million years ago.
Biodiversity before extinction: 2192
