the Azoic era
The 3 eras of geologic time is Palezozoic era, Mesozoic era, and Cecozoic era
In geologic time, the Hadean is the first EONof Earth's history, from it's formation 4.57 billion years ago to about 4 billion years ago. The Hadean is not an era, which is a smaller subdivision of geologic time.
Paleozoic
After an era, the next smallest division of time would be an epoch. An epoch is equal to around 10,000,000 years, where as an era is 100,000,000 years.
An era is a period of geologic time which varies in length but is many millions of years. For instance, the current era of geologic time, the Cenozoic, has lasted for over 65 million years to date.
an era is a very long span of geologic time
The 3 eras of geologic time is Palezozoic era, Mesozoic era, and Cecozoic era
The earliest era is the Cryptic era (an informal designation) for the earliest part of the Hadean eon which is not technically seperated into era. The first formal era is the Eoarchaean.
In geologic time, the Hadean is the first EONof Earth's history, from it's formation 4.57 billion years ago to about 4 billion years ago. The Hadean is not an era, which is a smaller subdivision of geologic time.
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Paleozoic
Era
The shortest piece of Geologic time is the Holocene Epoch in the Cenozoic Era>
After an era, the next smallest division of time would be an epoch. An epoch is equal to around 10,000,000 years, where as an era is 100,000,000 years.
An era is a period of geologic time which varies in length but is many millions of years. For instance, the current era of geologic time, the Cenozoic, has lasted for over 65 million years to date.
Era
The current geological era is the Cenozoic Era (65.5ma to now).