Geologic Timeline

By Maricella GuzmanMay 20, 2009Period 8

An example of bacteria thatwas 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

Paleozoic Era~Cambrian Period

A picture of earth in the Cambrian Time, greenmeans the land abovewater,light blue means the shallow seas of continentalshelves, 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

Paleozoic Era~Ordovician Period

A Lophoporates, an animal that Sucks food from water using itstentacles

This Picture representsGondwanaland, splitting apart from each other

490 to 443 mya1) 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 Gondwanaland2) 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

Paleozoic Era~Silurian Period

This drawing shows Eurypterids, RhynchonelidBrachiopods, and Trillobites

An example of the Silurian Sea floor

This is a picture of the Eurypterid

443 to 417 mya1) 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

Paleozoic Era~Devonian Period

This is a picture of Laurentia and Balitica getting closer to colliding

The green animal is aDunkleosteus, one of themost powerful bites of any animal ever

This was one of thespecies 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

Paleozoic Era~Carboniferous Period354 to 290 mya

This was one of thespecies that lived during the Devonian Period

The yellow shows the Glacial Spreading, while the green shows normal temperature

The Earth during the year329 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 SouthPole

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

Paleozoic Era~Permian Period290 to 248 mya

The upper two earth images indicates Gondwana,and Laurasia comingcloser 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, andcoral

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

Mesozoic Era~ Triassic Period248 to 206 mya

This is one of the firstDinosaurs, Rauisuchian Thecodont Postosuchus

This displays a sectionof 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

Mesozoic EraMesozoic Era~Jurassic Period206 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 exampleof 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

Mesozoic Era~Cretaceous Period144 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

Cenozoic Era~Tertiary Period65 tp 1.8 mya

This is a baleen whales ear that lived during the Tertiary Period

This is the homonid, our ancestors from a longtime 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

Cenozoic Era~Quaternary Period1.8 to present mya

This was one of the animalsthat lived during the Quarternary Period, The Phenacodus

The rhinoceros that lives today and at the beginning of the period

An image of Earth duringpresent 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

Works Cited

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