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Block Science > Earth Time > Flashcards

Earth Time Flashcards

1
Q

Earth age

A

4.6 bya

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2
Q

Biggest division of time

A

Eon*

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3
Q

Earliest rocks

A

3.8 bya Precambrian

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4
Q

Cambrian explosion

A

Started Paleozoic period

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5
Q

Earliest plants

A

Silurian

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6
Q

Bony fish

Earliest amphibians and ammonites

A

Devonian

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7
Q

Permian extinction

A

245-45 mya

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8
Q

Dinosaurs extinct

A

85 Mya

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9
Q

First prokaryote cell

A

3.5 bya

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10
Q

Explosions and extinctions

A

Explosions- life developers

Extinction- life dies

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11
Q

Earlier fish

A

Ordovician

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12
Q

Earliest terrestrial Animals

A

Silurian

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13
Q

Earliest dinosaurs

A

Triassic

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14
Q

Dinosaurs flourish

A

Jurassic

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15
Q

Dinosaur extinction

A

Cretaceous

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16
Q

Humans

A

Quaternary

17
Q

Eras

Latest to recent

A

Precambrian
Paleozoic
Mesozoic
Cenozoic

18
Q

Paleozoic periods

Latest to earliest

A 
Cambrian 
Ordovician 
Silurian
Devonian
Carboniferous
Permian
19
Q

Mesozoic periods

Oldest to recent

A

Triassic
Jurassic
Cretaceous

20
Q

Cenozoic periods

Oldest to recent

A

Tertiary

Quaternary

21
Q

Cenozoic means

A

Recent life

22
Q

Mesozoic means

A

Middle life

23
Q

Paleozoic means

A

Ancient life

24
Q

Precambrian means

A

Pre old stuff

25
Q

Cenozoic means

A

Recent life

26
Q

Mesozoic means

A

Middle life

27
Q

Paleozoic means

A

Ancient life

28
Q

Precambrian means

A

Pre old stuff

Block Science (33 decks)

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