in order please
Cenozoic,Mesozoic,Paleozoic,Precambrian
thanks
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The order of the geologic eras, from oldest to youngest, is as follows:
1. Precambrian: This is the longest and oldest era, covering about 88% of Earth's history. It includes the time from the formation of the Earth around 4.6 billion years ago to the beginning of the Paleozoic era, about 541 million years ago.
2. Paleozoic: Also known as the "Age of Invertebrates," this era spans from about 541 million years ago to 252 million years ago. It is characterized by the diversification of life, with the emergence of complex organisms like fish, amphibians, reptiles, and the first land-dwelling plants and insects.
3. Mesozoic: Commonly referred to as the "Age of Dinosaurs," this era extends from about 252 million years ago to 66 million years ago. It is divided into three periods: the Triassic, Jurassic, and Cretaceous. The Mesozoic era witnessed the dominance and eventual extinction of dinosaurs, as well as the emergence of mammals, birds, and flowering plants.
4. Cenozoic: Also known as the "Age of Mammals," this era began about 66 million years ago and continues to the present day. It is marked by the diversification of mammals and the rise of modern humans. The Cenozoic era is further divided into the Paleogene and Neogene periods.
Remember that these eras are based on the fossil record and have been determined through various scientific methods, such as radiometric dating and stratigraphy. By studying the layers of rocks and the fossils found within them, scientists have been able to piece together the timeline of Earth's history.
Here is the correct order of the geological eras you mentioned:
1. Precambrian
2. Paleozoic
3. Mesozoic
4. Cenozoic
The Precambrian is the oldest and longest era, which lasted from about 4.6 billion years ago to about 541 million years ago. The Paleozoic era followed, lasting from about 541 to 252 million years ago. Next came the Mesozoic era, which spanned from about 252 to 66 million years ago. Lastly, the current era we are in is the Cenozoic era, which began about 66 million years ago and continues to the present day.