Shared Flashcard Set

Details

Earth Timeline
Some important events in Earth's History
28
Environmental Studies
12th Grade
09/24/2013

Additional Environmental Studies Flashcards

 


 

Cards

Term
Event 1:
4.56 Billion Years Ago
Definition
Earth Forms
Term
Event 2:
4.4 Billion Years Ago
Definition
Oldest Mineral Grain Found
Term
Event 3:
4.1 Billion Years Ago
Definition
Oldest Evidence of Rock Found
Term
Event 4:
3.9 Million Years Ago
Definition
First Evidence of a Continent
Term
Event 5:
3.8 Billion Years Ago
Definition
First Eveidence of Life
Term
Event 6:
3.5 Billion Years Ago
Definition
First Fossils(Algae and Bacteria)
Term
Event 7:
1.8 Billion Years Ago
Definition
Free O2 in Atmosphere
Term
Event 8:
1.1 Billion Years Ago
Definition
First fossil of a Complex Creature Found
Term
Event 9:
540 Million Years Ago
Definition
First abundant life found in the rock record
Term
Event 10:
460 Million Years Ago
Definition
First Fish
Term
Event 11:
440 Million Years Ago
Definition
First Land Plants
Term
Event 12:
410 Million Years Ago
Definition
First Land Animals
Term
Event 13:
250 Million Years Ago
Definition
Largest Mass Extinction
Term
Event 14:
247 Million Years Ago
Definition
First Dinosaurs
Term
Event 15:
240 Million Years Ago
Definition
First Mammals
Term
Event 16:
220 Million Years Ago
Definition
Break up of super continent Pangea
Term
Event 17:
145 Million Years Ago
Definition
First Flowering Plants
Term
Event 18:
65 Million Years Ago
Definition
Dinosaurs and other animals go extinct
Term
Event 19:
30 Million Years Ago
Definition
Mammals/Flowering plants become Abundant
Term
Event 20:
5 Million Years Ago
Definition
Beginning of Cascade
Term
Event 21:
1.8 Million Years Ago
Definition
First primate in genus Homo
Term
Event 22:
40,000 Years Ago
Definition
First Homo Sapiens
Term
Event 23:
13,000 Years Ago
Definition
Humans First Inhabit North America
Term
Event 24:
10,000 Years Ago
Definition
End of Last Ice Age
Term
Event 25:
8,000 Years Ago
Definition
Founding of Jericho, the first known city
Term
Event 26:
2,000 Years Ago
Definition
Roman domination of the World
Term
Event 27:
500 Years Ago
Definition
European redicovery of the Americas
Term
Event 28:
34 Years Ago
Definition
Humans First Explore the moon.
Supporting users have an ad free experience!