The History of Life on Earth Flashcards
Highest atmospheric Carbon Dioxide
Precambrian
Lowest atmospheric Carbon Dioxide concentration
Quaternary
Lowest atmospheric oxygen concentration ( in the past 500 - million years)
Triassic
Lowest sea levels
Permian and Triassic
Supercontinent that existed from the late Paleozoic (335 may) until the Mesozoic era (175 may) when it broke apart
Pangaea
The southern region of the Pangaea supercontinent
Gondwana
Precambrian supercontinent that formed roughly 1.3 bya and broke up around 630mya, causing the Snowball Earth event
Rodinia
The northern region of the Pangaea supercontinent
Laurasia
From igneous rock to metamorphic
Heat and pressure
From magma to igneous rock
Cooling
From metamorphic rock to sediments
Weathering & Erosion
From sediments to sedimentary rock
Compaction and cementation
From metamorphic rock to magma
Melting
Teritary and Quaternary periods
Cenozoic era
Proterozoic, Archaean and Hadean eons
The “precambrian “
Ordovician, Carboniferous and Permian periods
Paleozoic era
Miocene and Pliocene epochs
Neogene period
The age of amphibians
Carboniferous period
The age of fishes
Devonian period
The age of mammals
Cenozoic era
The ice age
Pleistocene epoch
The _______ Explosion
Cambrian period
The age of reptiles
Mesozoic era
The Agee of man (The Anthropocene)
Holocene Epoch
Multi-cellular Eukaryotic life appears on Earth
1.5 BYA
This period is dominated by the diversification of the first terrestrial vascular plants
450 MYA
A massive asteroid impact causes an extinction event that kills nearly all dinosaur species ( except birds)
65 MYA
The sun and solar system, including Earth forms
4.5 BYA
Changes to the pH of Earth cause a sudden decrease in Fungal species, leading to reduces decomposition of plants. This results in the formation of fossil fuel deposits.
350 MYA
Glaciation events cause the Earth to rapidly warm and cool in cycles as the first humans spread out of Africa
2 MYA
The Cambrian explosion leads to a massive adaptive radiation of all animal species
550 MYA
The Snowball Earth event results in a mass extinction
630 MYA