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Geology Exam #2 > Era & period > Flashcards

Era & period Flashcards

0
Q

Mesozoic

252 million years ago

A

Cretaceous (Dino fade away)
Jurassic
Triassic (Dino appear)

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1
Q

Cenozoic

66 Million years ago

A

Quaternary (humans)
Neogene (modern mammals)
Paleogene (birds)

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2
Q

Paleozoic

541 million years ago

A 
Permian
Carboniferous (swamplands & reptiles)
Devonian
Silurian ( air breathing animals)
Ordovician 
Cambrian ( marine invertebrates)
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3
Q

Precambrian

4.6 billion years ago

A

The earths crust forms

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Geology Exam #2 (18 decks)

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