The History of Life on Earth Flashcards

1
Q

Highest atmospheric Carbon Dioxide

A

Precambrian

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2
Q

Lowest atmospheric Carbon Dioxide concentration

A

Quaternary

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3
Q

Lowest atmospheric oxygen concentration ( in the past 500 - million years)

A

Triassic

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4
Q

Lowest sea levels

A

Permian and Triassic

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5
Q

Supercontinent that existed from the late Paleozoic (335 may) until the Mesozoic era (175 may) when it broke apart

A

Pangaea

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6
Q

The southern region of the Pangaea supercontinent

A

Gondwana

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7
Q

Precambrian supercontinent that formed roughly 1.3 bya and broke up around 630mya, causing the Snowball Earth event

A

Rodinia

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8
Q

The northern region of the Pangaea supercontinent

A

Laurasia

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9
Q

From igneous rock to metamorphic

A

Heat and pressure

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10
Q

From magma to igneous rock

A

Cooling

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11
Q

From metamorphic rock to sediments

A

Weathering & Erosion

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12
Q

From sediments to sedimentary rock

A

Compaction and cementation

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13
Q

From metamorphic rock to magma

A

Melting

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14
Q

Teritary and Quaternary periods

A

Cenozoic era

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15
Q

Proterozoic, Archaean and Hadean eons

A

The “precambrian “

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16
Q

Ordovician, Carboniferous and Permian periods

A

Paleozoic era

17
Q

Miocene and Pliocene epochs

A

Neogene period

18
Q

The age of amphibians

A

Carboniferous period

19
Q

The age of fishes

A

Devonian period

20
Q

The age of mammals

A

Cenozoic era

21
Q

The ice age

A

Pleistocene epoch

22
Q

The _______ Explosion

A

Cambrian period

23
Q

The age of reptiles

A

Mesozoic era

24
Q

The Agee of man (The Anthropocene)

A

Holocene Epoch

25
Q

Multi-cellular Eukaryotic life appears on Earth

A

1.5 BYA

26
Q

This period is dominated by the diversification of the first terrestrial vascular plants

A

450 MYA

27
Q

A massive asteroid impact causes an extinction event that kills nearly all dinosaur species ( except birds)

A

65 MYA

28
Q

The sun and solar system, including Earth forms

A

4.5 BYA

29
Q

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.

A

350 MYA

30
Q

Glaciation events cause the Earth to rapidly warm and cool in cycles as the first humans spread out of Africa

A

2 MYA

31
Q

The Cambrian explosion leads to a massive adaptive radiation of all animal species

A

550 MYA

32
Q

The Snowball Earth event results in a mass extinction

A

630 MYA