0
What else can I help you with?
Which is the oldest geologic period?
The earliest geological period is known as the Precambrian. This is a very long period of time which begins about four and a half billion years ago, with the formation of the Earth, ending at the beginning of the Cambrian Era which is about 541 million years ago. So the Precambrian is about four billion years long, longer than all other eras combined.
what is the longest and oldest era of earths history?
The Longest Era of Earths History is Paleoproterozoic Eralasting 900 million years.The largest unit of time in relation to Earth's history is the super-eon. Super-eons are divided into eons. Eons in turn are divided into eras, eras are divided into periods, periods into Epochs and Epochs in Ages.Precambrian Super-Eon (4,600 - 542 Ma)Hadean Eon (4,600 - 3,800 Ma)Archean Eon (3,800 - 2,500 Ma)Eoarchean Era (3,800 - 3,600 Ma)Paleoarchean Era (3,600 - 3,200 Ma)Mesoarchean Era (3,200 - 2,800 Ma)Neoarchean Era (2,800 - 2,500 Ma)Proterozoic Eon (2,500 - 542 Ma)Paleoproterozoic Era (2,500 - 1,600 Ma)Mesoproterozoic Era (1,600 - 1,000 Ma)Neoproterozoic Era (1,000 - 542 Ma)Modern Super-Eon (542 Ma - Now)Phanerozoic Eon (542 Ma - now)Paleozoic Era (542 -251 Ma)Mezozoic Era (251 - 65 Ma)Cenozoic Era (65 Ma - Now)
The longest era lasting about 4 billion years was what era?
The Precambrian Super-Eon is the informal name for the time on earth before the Cambrian Period. It lasted from 4,576 millions years ago until 542 million years ago, about 4.034 billion years.No geological era lasted as long. The longest era was the Paleoproterozic Era(2,500 - 1,600Ma) which lasted 900 million years.
How long is the longest necklace?
The longest necklace is about 355 feet.
What species of mammal on average lives the longest?
The Bowhead whale is the longest living mammal.
What is the longest era with the least information available?
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.
Which division of geological time was the longest?
The Phanerozoic Eon is the longest division of geological time, spanning approximately the last 541 million years and continuing to the present day. It is further divided into three eras: the Paleozoic, Mesozoic, and Cenozoic eras.
What geologic era lasted longest?
The Cenozoic Era is the most recent geologic era and has lasted for around 65 million years, making it the longest era to date. During this era, mammals diversified and dominated the Earth's ecosystems.
What was the longest segment of the earth's history?
It was the Precambrian time period.
What era featured the longest periods with no life forms on Earth.?
Precambrian
Is the Mesozoic Era the longest?
The answer is NOOOO!!!! It is not the longest Era!!! The Precambrian consisted of the Archean and Proterozoic Eras which each pull roughly 2 billion years of geologic time making up the first 4 billion years of Earth. The Archean from 4.5 Billion Years Ago to about 2.5 BYA and the Proterozoic from 2.5 BYA to about 570 MYA. The Paleozoic which preceded the Mesozoic lasted about 345 Million years (570 MYA- 225 MYA) and the Mesozoic lasted about 215 Million years (225 MYA- 65 MYA).
What is the longest segments of geologic time called?
Precambrian Era.
What era of the geologic time scale was the longest?
precambrian times
How is the order from longest to shortest of era period epoch eon?
The Hadian Eon (4576.2 to 4000 Million years) has not been subdivided into recognised Era's. The named Era's from oldest to newest are. Eoarchean Era (4,000 to 3,600 Ma) Paleoarchean Era (3,600 to 3,200 Ma) Mesoarchean Era (3,200 to 2,800 Ma) Neoarchean Era (2,800 to 2,500 Ma) Paleoproterozoic Era (2,500 to 1,600 Ma) Mesoproterozoic Era (1,600 to 1,000 Ma) Neoproterozoic Era (1,000 to 542 Ma) Paleozoic Era (542 to 251 Ma) Mesozoic Era (251 to 65.5 Ma) Cenozoic Era (65.5 Ma to Now)
Is the Precambrian time the longest or shortest part of Earth's history?
The Precambrian time is the longest part of Earth's history, spanning from the formation of Earth around 4.6 billion years ago to about 541 million years ago. It makes up about 88% of Earth's history.
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.
Which era had the longest era?
It's not a brilliant question you haven't said what scale you're looking at - Cosmic, Geologic, etc,Geological time is divided as follows:Hadean 800 million yearsArchean 1300 million yearsProterozoic 1958 million yearsPhanerozoic 542 million years Paleozoic 291 million yearsMesozoic 184.5 million yearsCenozoic 66.5 million years Cretaceous PaleoceneEoceneOligocenePaleogeneNeogene MiocenePlioceneQuaternary PleistoceneHoloceneThe Earth is over 4.5 billion years old, We live in the Holocene Epoch of the Quatenary Period of the Cenozoic Era of the Phanerozoic Eon
