History Of Life On Earth Flashcards

(46 cards)

1
Q

A system of chronological measurement that relates to stratigraphy to time

A

Geologic time scale

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2
Q

Danish physician

A

Nicholas steno

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3
Q

Three main principles that underlie the interpretation of geologic time

A

The principle of superposition.
The principle of horizontality.
The principle of original lateral continuity.

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4
Q

Time of hidden life
( age of early life )

A

Precambrian

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5
Q

Fossils discovered 560 MYA in South australia

A

Coronacollina acula

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6
Q

Mars size planetoid

A

Theia

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7
Q

Stick strands of cyanobacteria trap sediment from the ocean and form visible mounds called ……

A

Stromatolites

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8
Q

Paleazoic era is also known as….

A

Old life

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9
Q

What is the supercontinent on the proterozoic eon?

A

Rodinia

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10
Q

Paleozoic era is also known as

A

Old life

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11
Q

This is the explosion of life

A

Cambria period

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12
Q

All existing phyla came into being at this time

A

Cambrian

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13
Q

This is the time where the 1st animals with bone appear and a very cold time in earth’s history

A

Ordovician period

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14
Q

Four main continents in ordovician period

A

Gondwana, baltica, Laurentia, Siberia

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15
Q

What period and what jawless fish called

A

Ordovician period and Agnatha

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16
Q

First land plants and land animals appear on this time

A

Silurian period

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17
Q

(1)What period was first millipede and Sea scorpions appeared and (2)what are these things called?

A

Silurian, eurypterids

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18
Q

The earliest well developed circulatory system
( vascular plants ) known as

A

Cooksonia

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19
Q

A primitive armoured fish

20
Q

Three northern continents collide to form the new supercontinent called

21
Q

Known as age of fish

A

Devonian period

22
Q

Amphibians, evergreens and ferns appear at this time

A

Devonian period

23
Q

Warm moist climate conditions

A

Carboniferous period

24
Q

The evolution of first reptiles took place with the development of…..

25
Known as the coal age
Carboniferous period
26
The formation of coal deposits of coal in plant debris formed what?
World's first extensive coal deposits
27
Meaning of the word carboniferous
Coal-bearing
28
Pangea forms: the reptiles spread across the continents
Permian period
29
Two major reptiles in permian period
Diapsids ( gave rise to dinosaurs ) Synapsids ( gave rise to mammals )
30
Periods of paleozoic era
Cambrian, ordovician, silurian, devonian, carboniferous and permian
31
The middle life
Mesozoic era
32
This time is the age of reptiles
Mesozoic era
33
What period in mesozoic era did the first dinosaur appear
Triassic period
34
First turtle fossil found on this period
Triassic period
35
It's the golden age of dinosaurs
Jurassic period
36
First birds appear
Jurassic period
37
The climate here is very hot and dry
Jurassic period
38
Deciduous trees and grasses were common on this period of mesozoic era
Cretaceous period
39
First flowering plants First primates and snakes appear
Cretaceous period
40
The recent life
Cenozoic era
41
Age of mammals and age of flowering plants
Cenozoic era
42
Three periods of cenozoic era
Paleogene, neogene, and quaternary
43
Age of humans
Quaternary period
44
Two epochs of quaternary
Holocene and pleistocene
45
The evolution of hominids and apes
Neogene
46
The solar system was forming within a cloud of dust and gas known as....
Solar nebula