Geologic Timeline

My Geologic Timeline Period 8

1. Geologic Timeline
By Maricella Guzman
May 20, 2009
Period 8

2. An example of bacteria that
was discovered in rocks
Precambrian Time
Time: 4500 to 543 mya
1) The earliest living
organisms in Precambrian
Time was bacteria
2) The Precambrian Time is
the first chapter of Earth,
when Earth was created, no
oxygen, no water, and no
land was formed. Soon the
molten rock cooled down and
created water vapor that
made our oceans today.
The Earth in its molten rock
stages
3) During the Hadean Era,
Earth was just, hot,
steamy, and thick air
because of the volcanoes
and the molten rock!
2) The Precambrian Time is
the first chapter of Earth,
when Earth was created, no
oxygen, no water, and no
land was formed. Soon the
molten rock cooled down and
created water vapor that
made our oceans today.
A picture of Earth in its
volcanic era

3. Paleozoic Era~Cambrian Period
A picture of earth in the
Cambrian Time, green
means the land above
water,light blue means the
shallow seas of continental
shelves, red means the
mountains
One of the animals that was
Killed during the mass
extinction
1) The climate in the
Cambrian time was cold,
when time passes by, the
climate grew warmer
Time: 543 to 490 mya
2) One of the top predators
in the Cambrian time was the
Anamolocaris, which has an
exoskeleton
This is a picture of the
Anamolocaris
3) The Cambrian Period
ended with the Mass
Extinction, when Mass
Extinction happened, the
oxygen in the water meant
no life for any living
creatures

4. Paleozoic Era~Ordovician Period
A Lophoporates, an animal that
Sucks food from water using its
tentacles
This Picture represents
Gondwanaland, splitting
apart from each other
490 to 443 mya
1) Continents today,
Southern Europe, Africa,
South Africa, Antarctica,
and Australia, was formed
together as Gondwanaland.
2) The climate in the
Ordovician Period was cold
because of the Ordovician Ice
Age
According to the chart, the
Temperatures in the
Ordovician time was colder
on the edges of
Gondwanaland
2) The climate in the
Ordovician Period was cold
because of the Ordovician Ice
Age
3) Organisms in the
Ordovician Period are new
species and replaced the
Cambrian Species,
invertebrates increased
300 more families in the
Ordovician Period

5. Paleozoic Era~Silurian Period
This drawing shows
Eurypterids, Rhynchonelid
Brachiopods, and
Trillobites
An example of the Silurian
Sea floor
This is a picture of the
Eurypterid
443 to 417 mya
1) By the end of the
Silurian Period,
Gondwanaland drifted
south and created the
super continent, Laurrasia.
2) Coral Reefs first appeared
on Earth
3) During the Silurian
Period, there was many
rapid climate changes

6. Paleozoic Era~Devonian Period
This is a picture of
Laurentia and Balitica
getting closer to
colliding
The green animal is a
Dunkleosteus, one of the
most powerful bites of any
animal ever
This was one of the
species that lived during the
Devonian Period
1) The Devonian Time was
known as the Age of
Fishes

2) Trees and forests
appeared for the first time,
including insects and spiders

1) The Devonian Time was
known as the Age of
Fishes

3) The two continents,
Laurentia and Baltica
collides

417 to 254 mya

7. Paleozoic Era~Carboniferous Period
354 to 290 mya
This was one of the
species that lived during the
Devonian Period
The yellow shows the
Glacial Spreading, while the
green shows normal
temperature
The Earth during the year
329 mya in the
Carboniferous Period
This a picture of the
gigantic rhizodont fish,
which is can reach up to
7 meters long
1) East Gondwanaland
Drifted towards the South
Pole

2) At the beginning of the
period, the climate was
warm, but it constantly
changes
3) The first reptiles
appeared during this
period, the swamps had
crocodiles, eels, and
salamander like forms

8. Paleozoic Era~Permian Period
290 to 248 mya
The upper two earth
images indicates Gondwana,
and Laurasia coming
closer to each other
The Petalodontiforme,
one of the salt water
fishes in the Permian
Period
The shallow sea,swarmed
with so much life, like algae,
foraminifers, sponges, and
coral
1) Pangaea collided a.k.a.
“Pacman Continent”

1) Pangaea collided a.k.a.
“Pacman Continent”

2) In the Permian Period, it
was still in grip of a n ice
age, glaciers continued to
cover Gondwanaland

3) The great forest of the
fern like plants, shifted to
gymnosperms

9. Mesozoic Era~ Triassic Period
248 to 206 mya
This is one of the first
Dinosaurs, Rauisuchian
Thecodont Postosuchus
This displays a section
of the Triassic Period in 210
This is a picture of the
marine reptile, ichtyosaur
1) Around Pangaea, it was
surrounded by the huge
ocean Panthalassia

1) Around Pangaea, it was
surrounded by the huge
ocean Panthalassia


3) The Triassic Period was
introduced to the first
dinosaurs, and mammals

2) The reptiles became so
Successful, that it is called
The Age of Reptiles

10. Mesozoic EraMesozoic Era~Jurassic Period
206 tp 144 mya
Earth during the year,
170 mya

This is one of the
Archaeopteryx birds, the
black words tell you a
description about the bird
This plant is an example
of the Cycad
1) Dinosaurs were the
main dominant animals for
150 million years

1) Dinosaurs were the
main dominant animals for
150 million years

1) Dinosaurs were the
main dominant animals for
150 million years

2) The first bird appeared,
the archaeopteryx, a.k.a.
Ancient winged thing

2) The Cycads were so
abundant and diverse, that
the Jurassic Period was
called the “Age of Cycads”

11. Mesozoic Era~Cretaceous Period
144 to 65 mya
This was the start of
Development of water lillies,
and magnolias
Tyrannosaurus during the
astroids, falling
A map of Earth during the
Crutaceous Period
1) The reptile birds
became extinct because of
their heavy bones, than the
birds today

2) Scientist believe that the
Createous Period ended with
a huge astroid

1) The reptile birds
became extinct because of
their heavy bones, than the
birds today

3) This was the beginning
of the breakup of Pangaea

12. Cenozoic Era~Tertiary Period
65 tp 1.8 mya
This is a baleen whales ear
that lived during the
Tertiary Period
This is the homonid, our
ancestors from a long
time ago
The angiosperms which
was beneficial to insects
1) Mammals became the
dominant animals on Earth

1) Mammals became the
dominant animals on Earth

2) During the Tertiary
Period, whales evolved

2) During the Tertiary
Period, whales evolved

3) The Cenozoic Era
became the “Age of
Mammals”

13. Cenozoic Era~Quaternary Period
1.8 to present mya
This was one of the animals
that lived during the
Quarternary Period,
The Phenacodus
The rhinoceros that lives
today and at the beginning
of the period
An image of Earth during
present time today
1) The Quaternary Period
is the current period of
today

1) The Quaternary Period
is the current period of
today

1) The Quaternary Period
is the current period of
today

2) Earths climate cooled
down, which caused a
series of Ice Ages

1) The Quaternary Period
is the current period of
today

3) Some animals,
Mammoths, rhinoceros,
bison, and reindeer, grew
thick coats to keep them
warm from the cold
weather

14. Works Cited
http://www.seorf.ohiou.edu/~tstork/compass.rose/earth.history.02/Earth%20Web%20Page/Jurassic.2.html
http://www.terradaily.com/reports/Scientists_Rebuild_Ancient_Proteins_To_Reveal_Primordial_Earth_Temperature_999.html
http://www.geocraft.com/WVFossils/Carboniferous_climate.html
http://www.britannica.com/EBchecked/topic/131719/Condylarthra
http://student.britannica.com/elementary/art/print?id=1702&articleTypeId=0
http://www.hmnh.org/archives/category/timeline/paleozoic/devonian/
http://www.palaeos.com/Mesozoic/Triassic/Triassic.htm
http://www.dinosaurfact.net/Cretaceous.php
http://www.kidcyber.com.au/topics/dinoCret.htm
http://www.bbm.me.uk/portsdown/PH_065_Palaeo.htm
http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookPaleo4.html
http://www.gsi.ir/Training/Lang_en/Page_66/GroupId_01-08/DataId_548/Action_Pn4/training.html
http://www.cotf.edu/ete/modules/msese/earthsysflr/cambrian.html
http://www.fossils-facts-and-finds.com/cambrian_period.html
http://donsmaps.com/bcmammoth.html
http://www.daviddarling.info/encyclopedia/C/Cretaceous.html
http://virtual.clemson.edu/geomusem/bcgm3486.htm
http://www.enotes.com/earth-science/cambrian-period
http://www.palaeos.com/Paleozoic/Ordovician/Ordovician.htm
http://www.palaeos.com/Paleozoic/Ordovician/Ordovician.htm