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Cristina and Jessica's Geological Timeline
Project Name : Cristina and Jessica's Geological Timeline
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Cristina and Jessica's Geologic Timeline
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Life History Event Timeline

If all Earth's history  were an average human's large intestine (152 cm), then the following events would happen at


 Event #  Your Analogy Value Years Ago 
1 151.9 cm 14 YA
Birth

Cristina and Jessica are born.

 Event #  Your Analogy Value Years Ago 
 2
151.999 cm
.000015 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

           
ice sheets start to diminish and fade away to reveal the land.
 Event #  Your Analogy Value Years Ago 
 3  151.99 cm .000100 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 


             
    
            Homo sapiens appear on earth. Homo sapiens looked more like humans today than Homo Erectus did. The skeletal structure was more so the same as people today.
 Event #  Your Analogy Value Years Ago 
 4 151.98 cm
.000600 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

           

            New species of homo erectus begin to evolve. They resembled humans today but had a more monkey like structure.
          
 Event #  Your Analogy Value Years Ago 
 5 151.9 cm
2 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 


     
         ice envelops the earth craeting the ice age, killing some speices and forcing other to adapt.
 Event #  Your Analogy Value Years Ago 
6 151.8 cm 3.4 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 

           
        Aystralopithecus afarensis, (monkey like animals), appear around the world in places like ethiopia.
 Event #  Your Analogy Value Years Ago 
7 149 cm 9 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
                  

 San Andres Fault becomes active lifting up mountian ranges creating new areas in north america.

 Event #  Your Analogy Value Years Ago 
8 149.8 cm 65 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
           

 Radiation occurs in mamals, and the Dinosaur species goes extinct.the most common theorie is that a giant commet hit earth and wipped out entire species, this was know as mass extinction.

 Event #  Your Analogy Value Years Ago 
9 147.7 cm 130 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
           

 Angiosperms, (flowering plants), develpoed and began to spread over the land. the picture above shpws a fossilized palm leaf.

Event #  Your Analogy Value Years Ago 
10 147.2 cm 145 MYA
Description of Events that Affected Life on Earth. Also Include Picture or Videos. 
 

 the atlantic ocean opens for the first time. the well kniow suoer continent known as Pangea seperated leaving a new ocean expossed as seen in the picture above.

 Event #  Your Analogy Value Years Ago 
11 146.7 cm 160 MYA
Birds

Birds evolve from feathered theropod dinosaurs. The photo above shows a fossilized archaeopteryx. As the oldest known bird, it appears to be part modern bird, part dinosaur. Similar to a modern bird, it has feathers; like a dinosaur, it has deadly claws and a bony tail.

 Event #  Your Analogy Value Years Ago 
12 146.1 cm 180 MYA
Pangaea Breaks

Plate tectonics slowly separate causing earthquakes strong enough to break Pangaea. Eventually the continents drift to their current location.

 Event #  Your Analogy Value Years Ago 
13 145.4 cm 200 MYA
Mammals

Early mammals evolve from mammal-like reptiles called therapsids. The mammals are extremely small so that they can easily escape enormous dinosaurs. 

 Event #  Your Analogy Value Years Ago 
14 144.1 cm 240 MYA
Dinosaurs!

Dinosaurs appear during the Triassic Period in the Mesozoic Era. The reptile-like creatures dominate Pangaea.

 Event #  Your Analogy Value Years Ago 
15 143.7 cm 250 MYA
Permian-Triassic Mass Extinction

There is an overabundance of greenhouse gases as the Paleozoic Era comes to an end. Rapidly increasing temperatures cause 95 percent of marine species and 70 percent of land species to die out.

 Event #  Your Analogy Value Years Ago 
16 142.9 cm 275 MYA
Pangaea

The continents Gondwana and Euramerica fuse together to form the supercontinent Pangaea. Pangaea accounts for a third of the Earth while the Panthalassic Ocean covers the rest.

 Event #  Your Analogy Value Years Ago 
17 139.6 cm 375 MYA
Amphibians

Icthyostega and acanthostega (the first amphibians) evolve from strong, lobe-finned fish that may even have lungs.

 Event #  Your Analogy Value Years Ago 
18 136.9 cm 458 MYA
Land Plants

Land plants finally appear on land. The photo above shows cryptospores which, according to the fossil record, are among the first land plants to appear on Earth.  

 Event #  Your Analogy Value Years Ago 
19 135.1 cm 510 MYA
Fish

Slow, bottom-dwelling fish called ostracoderms first appear during the Paleozoic Era. Ostracoderms are covered in heavy armor and have no jaws.

 Event #  Your Analogy Value Years Ago 
20 130.5 cm 650 MYA
Snowball Earth

Freezing temperatures cover Earth's oceans with glaciers which cause the extinction of 70 percent of sea plants.

 Event #  Your Analogy Value Years Ago 
21 119 cm 1000 MYA
Multicellular Organisms

Multicellular organisms first appear as soft, simple beings. Caenorhabditis elegans, a non-parasitic nematode, is the first multicellular organism to have its whole genome sequenced. The video above shows its boneless, flowing movement.

 Event #  Your Analogy Value Years Ago 
22 102.4 cm 1500 MYA
Eukaryotes

First cells with nuclei (eukaryotes) appear.

 Event #  Your Analogy Value Years Ago 
23 85.9 cm 2000 MYA
Oxygen Atmosphere and Ozone Layer

Cyanobacteria continues to photosynthesize and makes the first oxygen atmosphere. The ozone layer forms and shields organisms from the sun's UV rays.

 Event #  Your Analogy Value Years Ago 
24 79.3 cm 2200 MYA
Aerobic Respiration

Organisms with mitochondria begin the process of aerobic respiration. 

 Event #  Your Analogy Value Years Ago 
25 72.7 cm 2400 MYA
Great Oxidation Event 

Dissolved iron organic matter is unable to capture oxygen produced by cyanobacteria. The excess free oxygen is responsible for the extinction of most anaerobic  organisms and for reacting with methane to begin the Huronian Ice Age.

 Event #  Your Analogy Value Years Ago 
26 36.3 cm 3500 MYA
Photosynthesis Starts

Cyanobacteria (blue-green algae) begins the process of photosynthesis.

 Event #  Your Analogy Value Years Ago 
27 26.4 cm 3800 MYA
Oldest Evidence for Life

The appearance of prokaryotes mark the end of  Hadean Eon and the beginning of Archean Eon.

 Event #  Your Analogy Value Years Ago 
28 23.1 cm 3,900 MYA
Oldest Dated Crustal Rocks 

Present day scientists used the uranium-lead method to date the oldest known crustal rocks.

 Event #  Your Analogy Value Years Ago 
29 3.3 cm 4,500 MYA
Formation of the Moon

 According the giant impact hypothesis, a rouge planet about the size of Mars crashes into the Earth and leaves debris which forms the moon.

 Event #  Your Analogy Value Years Ago 
30 distance 4,600 MYA
Origin of the Earth 

Precambrian Time begins with the formation of Earth.