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The History of the Earth Timeline
Date-Event
28
Geology
12th Grade
09/24/2013

Additional Geology Flashcards

 


 

Cards

Term

 

 

4.56 Billion Years

Definition

 

 

Earth Forms

Term

 

 

4.4 Billion Years

Definition

 

 

Oldest mineral grain found

Term

 

 

4.1 Billion Years

Definition

 

Oldest piece of rock ever

found

Term

 

 

3.9 Billion Years

Definition

 

 

Oldest evidence of a continent

Term

 

 

3.8 Billion Years

Definition

 

 

First evidence of life

Term

 

 

3.5 Billion Years

Definition

 

First Fossils

(Algae & Bacteria)

Term

 

 

1.8 Billion Years

Definition

 

 

Free O2 in atmosphere

Term

 

 

1.1 Billion Years

Definition

 

First fossil of a complex

organism

(a worm)

Term

 

 

540 Million Years

Definition

 

First abundant life found in the rock record

Term

 

 

460 Million Years

Definition

 

 

First Fish

Term

 

 

440 Million Years

Definition

 

 

First Land Plants

Term

 

 

410 Million Years

Definition

 

 

First Land Animals

Term

 

 

250 Million Years

Definition

 

 

Largest Mass Extinction

Term

 

 

247 Million Years

Definition

 

 

First Dinosaurs

Term

 

 

240 Million Years

Definition

 

 

First Mammals

Term

 

 

220 Million Years

Definition

 

Break-up of super continent Pangaea begins

Term

 

 

145 Million Years

Definition

 

 

First Flowering Plants

Term

 

 

65 Million Years

Definition

 

Dinosaurs and other animals go extinct

Term

 

 

30 Million Years

Definition

 

Mammals/Flowering plants become abundant

Term

 

 

5 Million Years

Definition

 

 

Beginning of Cascade

Volcanic Arc

Term

 

 

1.8 Million Years

Definition

 

First primate in genus

 Homo

Term

 

 

40,000 Years

Definition

 

 

First Homo sapiens

Term

 

 

13,000 Years

Definition

 

Humans first inhabit North America

Term

 

 

10,000 Years

Definition

 

 

End of last Ice Age

Term

 

 

8,000 Years

Definition

 

Founding of Jericho, the first known city

Term

 

 

2,000 Years

Definition

 

Roman domination of

the World

Term

 

 

500 Years

Definition

 

European rediscovery of the Americas

Term

 

 

~34 Years

Definition

 

Humans first explore the

moon

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