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The Precambrian time era ended approximately 541 million years ago with the onset of the Cambrian period, marked by the "Cambrian Explosion." This event saw a rapid diversification of life forms and the development of complex multicellular organisms. Factors contributing to this transition include significant geological and environmental changes, such as increased oxygen levels in the atmosphere and oceans, which facilitated the evolution of more complex life. Additionally, the formation of supercontinents and changes in ocean chemistry played crucial roles in shaping the biosphere.
What else can I help you with?
What are the four geologic time scale eras from oldest to most recent?
The 4 eras are Cenozoic era, the mesozoic era, the paleozoic era, and the precambrian era.
What is the longest segments of geologic time called?
Precambrian Era.
Why is the shield also referred to as the Precambrian Shield?
Because it was created in the precambrian era...The Candadian Shield was formed in the Precambrian Era.The rocks of the Canadian Shield formed during the Precambrian time.
What major changes life-forms occurred at the end of Precambrian time?
what major change in life forms occured at the end of precambrain time
What era featured the longest periods with no life forms on Earth.?
Precambrian
What years did the Precambrian era end?
Lady Gaga
Which describes the correct order of the geologic time scale from oldest to most recent?
ok im going to start off by saying this, the last answerer is stupid, and doesnt know what he is talking about. it goes from: PERIOD ERA EPOCH there you go ;)
When did the precambrian era end?
About 540 million years ago.
When did the precambrian era begin?
The Precambrian Era began in the time period 4600 and ended in 570.
What is the time range of Precambrian Era?
Precambrian time - The period in the geologic time scale from the formation of the Earth to the beginning of the Palezonoic era, from about 4.6 billion to 543 million years ago.
What are four divisions of geological time?
Precambrian Era, Paleozoic Era, Mesozoic Era, Cenozoic Era
What are the four geologic time scale eras from oldest to most recent?
The 4 eras are Cenozoic era, the mesozoic era, the paleozoic era, and the precambrian era.
What geological time era was old faithful formed?
Precambrian.
What is the longest segments of geologic time called?
Precambrian Era.
What era of the geologic time scale was the longest?
precambrian times
How many years is the Precambrian era?
The Precambrian era spanned approximately 4 billion years, making it the longest geologic time period in Earth's history.
Why is the shield also referred to as the Precambrian Shield?
Because it was created in the precambrian era...The Candadian Shield was formed in the Precambrian Era.The rocks of the Canadian Shield formed during the Precambrian time.
