About 540 million years ago.
Yes. The first era was the precambrian era followed by the paleozoic era then the mesozoic era than the Cenozoic era.
The Precambrian era spanned approximately 4 billion years, making it the longest geologic time period in Earth's history.
The Precambrian Era began in the time period 4600 and ended in 570.
The Precambrian era was a geological period that spanned from about 4.6 billion years ago to around 541 million years ago. It encompasses the earliest part of Earth's history, including the formation of the planet and the evolution of life forms. The Precambrian era was followed by the Paleozoic era, which marked the beginning of complex life on Earth.
The Precambrian ended about 541 million years ago.
The Precambrian Era ended around 541 million years ago with the Cambrian Explosion, a period of rapid diversification of life forms. This marked the transition to the Phanerozoic Eon, characterized by the emergence of complex multicellular organisms.
4,028,000,000 years.
Began 5 billion years ago
The Precambrian Era ended with the beginning of the Cambrian Period, approximately 541 million years ago. This period is characterized by the sudden appearance of a diverse range of complex life forms in the fossil record, known as the "Cambrian explosion".
The Precambrian era begins with the formation of Earth around 4.6 billion years ago. It is the longest geological time period, spanning from the formation of Earth to the beginning of the Paleozoic era about 541 million years ago.
The Precambrian era is the longest geological era, spanning from about 4.6 billion years ago to 541 million years ago, but it is also the era with the least amount of detailed information available due to the lack of well-preserved rocks and fossils from that time period.