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- origin of the planet and its geological eras
- since the beginning of time, scientists hav inbestigated the geological eras that existed on the planet
- the bingbag theory tells us that a little less than 14 billion years ago , the universe was something very ,very different from what we know now
- after the explosion of the bing bang , the first quarks and leptons ,the constituents units of elementary particles ,were formed .furthermore , the only original unified force was separated into the four forces we know today: gravity ,electromagnetism and the strong and weak nuclear forces
- in the paleozoic era ,the life of the seas grew and changed. plants evolved ,but they did not yet have leaves or the vascular tissue to stract water and nutrients ,ferns appeared ,as did the first trees ,many of the animals began to develop skeletons and shells ,the animals and plants managed to conquer the land leaving their marine life
- Paleozoica era
- it was mesozoic
- the mesozoico era is known as the age of reptiles because it is the dominant group of vertebrates on land and in the seas. the mesozoic lasted between 250 and 66 million years ago,and during that time great reptiles known as dinosaurs had their heyday
- it was cenozoic
- the cenozoic is also called the era of mammals,animals that, when the dinosaurs became extinct at the end of the cretaceos,suffered an extraordinary adaptive radiation and became the characteristic fauna
- now that we know more about the beginning of types of geologicalage ages of planet earth that began with the universe, it is fantastic to see that we have evolved so much
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