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Flashcards in Earth Geological History | Study Cards Deck (25)
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1

List the Eras from oldest to current

Paleozoic Era

Mesozoic Era

Ceriozoic Era

2

List the periods in the Paleozoic Era in order from oldest to recent (in that time span)

1) Cambrian Period

2) Ordovican Period

3) Silurian Period

4) Carboniferous Period

5) Permian Period

3

Which 2 periods in the Paleozoic Era had extinction events?

Ordovican & Permian Periods

4

What was the Cambrian Explosion?

when all major phyla (animals) began to appear in the fossil record. This mainly refers to marine life as the land was still barren.

5

Which period in the Paleozoic Era did the ancestors of modern animals appear?

Cambrian

6

What is the idea behind the name of the Cambrian Explosian?

named thusly because of the relatively short period of time such a diversity of life formed

7

What is the Ordovician Period known for?

Best known for its diverse marine invertebrates.

8

Describe the Ordovician Period's Extinction Event?

Brought upon when the Supercontinent Godwana drifted South which caused it's temperatures to drop, and caused massive glaciers to form which caused the sea level to drop

9

What period did terrestrial anthropods begin to colonize the land

Silurian period

10

When did the first jawed fish & vascular plants appeafr

Silurian period

11

Why was the Carboniferous Period named that

because this is where our modern coal deposits were founded

12

What was the extincition event for the Permian Period

Huge volcanic eruptions caused massive extinctions which killed 85& of species.

13

Which period had the most severe extinction event in history>

Permian Period

14

Which period did the continenets come together to form Pangea

Permain Period

15

What was the Mesozoic Era known as

The age of reptiles

16

List the Mesozoic Era in order

1) Triassic Period

2) Jurassic Period

3) Cretaceus Period

17

What species dominated the Triassic period?

Archosuars

18

What period in the Mesozoic era did Pangea begin to break up

Triassic Period

19

What was the Jurassic Period known for

When dinosuars ruled

20

What did frogs, salamanders, lizards, and mammals begin to appear?

In the Jurrassic Period

21

What was the Extinction Event in the Creataceous Period

Brought upon by an asteroid impact near the Yucatan Peninsula which triggered volcanic eruptions

The volcanic eruptions caused soot and smoke to block out the sun

22

List the Ceriozoic Era in order

Paleogene Period

Neogene Period

Quaternary Period

23

What was the Paleogene Period known for

Characterized by the rise in mammals & the origins of apes & during this time mammals began to get larger

24

Which period did the continenets begin to apporach their current positions

Paleogene Period

25

What 2 things happened in the Neogene Period

Global Climates began to cool

Mammals & birds began to evolve into modern forms