Eon definition, an indefinitely long period of time; age. See more.Find out all the key statistics for E.ON SE (EOAN.DE), including valuation measures, fiscal year financial statistics, trading record, share statistics and more.Sep 12, 2022 · The new study, to be published this week in the journal Proceedings of the National Academy of Sciences , shows that four of the five biggest mass extinctions over the past 540 million years — the so-called Phanerozoic Eon — and a handful of other smaller, but still planet-wide, mass extinctions correlate with major lava events that ... More complex animals appeared in the oceans about 565 million years ago, and became much more common about 542 million years ago. ... Eon. Phanerozoic means ...More than 20 Years in AR / VR. EON Reality is the world leader in Augmented and Virtual Reality academic and industry training solutions. We believe that knowledge is a human right and should be available, accessible, and affordable for every human on the planet. We soon will be a publicly traded company listed on Nasdaq.Eon has a number of meanings. In Astronomy, an eon refers to 1 billion (10 9) years. But it also refers to a very long, unspecified period of time, or specific geologic stages of the Earth. Since this question is posted in Astronomy, I will assume that the answer of eon = 10 9 years is the most appropriate, however it is not the most common.The Cenozoic (/ ˌ s iː n ə ˈ z oʊ. ɪ k, ˌ s ɛ n-/ SEE-nə-ZOH-ik, SEN-ə-; lit. 'new life') is Earth's current geological era, representing the last 66 million years of Earth's history. It is characterised by the dominance of mammals, birds and flowering plants.It is the latest of three geological eras, preceded by the Mesozoic and Paleozoic.The Cenozoic started …The Precambrian eon is vast, almost unimaginably so. In fact, before some fossil discoveries were made late in the 20th century, it was considered unknowable -- evolution's dark ages. The ...At the present rate of seafloor spreading, the entire seafloor is recycled every 200 million years. Assuming that the past rate of seafloor generation has been this fast or faster, calculate the minimum number of times the seafloor has been recycled since the end of the Archean eon. Earth Science Science Geology GEO 1050.However, producers from EON, the stewards of the James Bond franchise, have suggested that things aren't coming together as quickly as rumblings would indicate, ... Whoever lands the role of the infamous British spy, the new actor would be expected to play 007 for the next 5-10 years (If not longer). Barbara Broccoli Bond 26 Bond Reboot EON.Two years ago on Lifehacker, you got some New Year's Resolution inspiration. Two years ago on Lifehacker, you got some New Year's Resolution inspiration. by Adam PashMay 12, 2021 · The stromatolites were dated about 3.48 billion years ago while the graphite was dated about 3.7 billion years ago. The Proterozoic Eon. Subsequent eons from the Proterozoic Eon had multicellular organisms. This eon spanned 2.5 billion years ago to 541 million years ago. The life forms continued to evolve and get advanced as the earth aged. Nov 10, 2021 · The first eon is called the Hadean, and it lasted from the origin of Earth, 4.6 billion years ago, to 4 billion years ago. During this eon, the planet was very hot and had a partially molten surface. The oldest fossil clearly related to modern eukaryotes is a red alga dating back to 1.2 billion years ago. However, many scientists place the appearance of eukaryotic cells at about 2 billion years. Some time within Proterozoic Eon, then, all three major groups of life – Bacteria, Archaea, and Eukaryotes – became well established.Eon has a number of meanings. In Astronomy, an eon refers to 1 billion (10 9) years. But it also refers to a very long, unspecified period of time, or specific geologic stages of the Earth. Since this question is posted in Astronomy, I will assume that the answer of eon = 10 9 years is the most appropriate, however it is not the most common.eon definition: 1. a period of time that is so long that it cannot be measured: 2. a period of time of one…. Learn more.Eons. In geochronology, time is generally measured in mya (million years ago), each unit representing the period of approximately 1,000,000 years in the past. The history of Earth is divided into four great eons, starting 4,540 mya with the formation of the planet.Each eon saw the most significant changes in Earth's composition, climate and life. Each eon is subsequently divided into eras ...Sixty Years of James Bond, the official two-part charity auction presented by Christie’s and EON Productions, in celebration of the 60th anniversary of 007 on the silver screen, raised a fantastic total of £6,874,494. The 61 lots presented across the live and online auctions were 100% sold.Hadean zircon. Hadean zircon is the oldest-surviving crustal material from the Earth's earliest geological time period, the Hadean eon, about 4 billion years ago. Zircon is a mineral that is commonly used for radiometric dating because it is highly resistant to chemical changes and appears in the form of small crystals or grains in most igneous ...Geologic Time Scale. Humans subdivide time into useable units such as our calendar year, months, weeks, and days; geologists also subdivide time. They have created a tool for measuring geologic time, breaking it into useable, understandable segments. For the purposes of geology, the “calendar” is the geologic time scale.The filling of Earth’s skies with oxygen, roughly 2.1 to 2.4 billion years ago — geologists call that the Great Oxidation Event. Mass extinctions are events, as is the burst of diversity in ...Since this question is posted in Astronomy, I will assume that the answer of eon = 10^9 years is the most appropriate, however it is not the most common. The term eon (or aeon) is frequently used as a term for a …14 de fev. de 2021 ... The Hadean was originally defined as the birth of the planet occurring 4.0 billion years ago and preceding the existence of many rocks and life ...How to convert Years to Aeons (yr to eon)? 1 yr = 1.0E-9 eon. 1 x 1.0E-9 eon = 1.0E-9 Aeons. Always check the results; rounding errors may occur. Definition: A year is the …eon. e·on / ˈēən; ˈēˌän / ( chiefly Brit. also ae·on) • n. (often eons) an indefinite and very long period of time, often a period exaggerated for humorous or rhetorical effect: he reached the crag eons before I arrived. ∎ Astron. & Geol. a unit of time equal to a billion years. ∎ Geol. a major division of geological time ...15 de mar. de 2023 ... Essen (energate) - The energy group Eon has surprisingly increased its annual profit in 2022, beating its own forecasts. Eon grew mainly in ...First, Eon will buy RWE’s 76.8 per cent stake in Innogy, the renewables energy business that was spun out in 2016, and table an all-cash offer worth €40 a share, a 15.6 per cent mark-up on ...eon definition: 1. a period of time that is so long that it cannot be measured: 2. a period of time of one…. Learn more.Oct 5, 2021 · Geologic Time Scale. Humans subdivide time into useable units such as our calendar year, months, weeks, and days; geologists also subdivide time. They have created a tool for measuring geologic time, breaking it into useable, understandable segments. For the purposes of geology, the “calendar” is the geologic time scale. Eon is an interdimensional timeline traveler and one of Ben's adversaries. He is the archenemy of Professor Paradox, as well as an alternate and evil version of Ben. He first appeared in Ben 10: Race Against Time. In Race Against Time, Eon had pale white skin and maroon marks around his eyes.How to convert Years to Aeons (yr to eon)? 1 yr = 1.0E-9 eon. 1 x 1.0E-9 eon = 1.0E-9 Aeons. Always check the results; rounding errors may occur. Definition: A year is the orbital period of the Earth moving in its orbit around the Sun.Check out our latest electricity an gas deals and renew your energy tariff today. We've got a range of E.ON Next tariffs for existing customers. Renew your tariff. Plus you could get up to £150 off boilers, £350 off heat pumps and £200 off solar panels & batteries as an E.ON Next customer. Ts & Cs apply. Charles d'Éon de Beaumont or Charlotte d'Éon de Beaumont (5 October 1728 – 21 May 1810), usually known as the Chevalier d'Éon or the Chevalière d'Éon, was a French diplomat, spy, and soldier.D'Éon fought in the Seven Years' War, and spied for France while in Russia and England.D'Éon had androgynous physical characteristics and natural …Eon Productions, which now holds the adaptation rights to all of Fleming's Bond novels, made all but two films in the film series. In 1961, producers Albert R. Broccoli and Harry Saltzman purchased the filming rights to Fleming's novels. They founded Eon Productions and, with financial backing by United Artists, produced Dr. May 12, 2021 · The stromatolites were dated about 3.48 billion years ago while the graphite was dated about 3.7 billion years ago. The Proterozoic Eon. Subsequent eons from the Proterozoic Eon had multicellular organisms. This eon spanned 2.5 billion years ago to 541 million years ago. The life forms continued to evolve and get advanced as the earth aged. In geochronology, time is generally measured in mya (million years ago), each unit representing the period of approximately 1,000,000 years in the past. The history of Earth is divided into four great eons, starting 4,540 mya with the formation of the planet. Each eon saw the most significant changes in Earth's composition, climate and life.At the present rate of seafloor spreading, the entire seafloor is recycled every 200 million years. Assuming that the past rate of seafloor generation has been this fast or faster, calculate the minimum number of times the seafloor has been recycled since the end of the Archean eon. Earth Science Science Geology GEO 1050.Pinaaki Creation - Offering Kid Eon Kids Knitted Baba Suit, Age Group: 0 - 4 Years at Rs 125/piece in 24 Parganas, West Bengal. Also find Kids Baba Suit ...Eon definition, an indefinitely long period of time; age. See more.Pinaaki Creation - Offering Kid Eon Kids Knitted Baba Suit, Age Group: 0 - 4 Years at Rs 125/piece in 24 Parganas, West Bengal. Also find Kids Baba Suit ...Cambrian Period, earliest time division of the Paleozoic Era and Phanerozoic Eon, lasting from 538.8 million to 485.4 million years ago. The Cambrian System, named by English geologist Adam Sedgwick for slaty rocks in southern Wales and southwestern England, contains the earliest record of abundant and varied life-forms.... Eon (from the words "crypt" = "hidden," and ... It began about two billion years after the formation of the earth and lasted about another two billion years!1. : an immeasurably or indefinitely long period of time : age. I haven't seen him in eons. 2. a. : a very large division of geologic time usually longer than an era. the Archean eon. b. : a unit of geologic time equal to one billion years. Let's get you logged in. Please choose the option that is correct for you. Is this your first time logging in to E.ON Next? If it is, then we'll just need to get you set up so you can start managing your online account.Archean Eon, interval lasting from about 4.0 billion to 2.5 billion years ago, the first formal division of Precambrian time. Fossil evidence of the earliest primitive life-forms appears in rocks about 3.5–3.7 billion years old; other evidence suggests that life may have emerged before 3.95 billion years ago.In geochronology, time is generally measured in mya (million years ago), each unit representing the period of approximately 1,000,000 years in the past. The history of Earth is divided into four great eons, starting 4,540 mya with the formation of the planet. Each eon saw the most significant changes in Earth's composition, climate and life.eon. e·on / ˈēən; ˈēˌän / ( chiefly Brit. also ae·on) • n. (often eons) an indefinite and very long period of time, often a period exaggerated for humorous or rhetorical effect: he reached the crag eons before I arrived. ∎ Astron. & Geol. a unit of time equal to a billion years. ∎ Geol. a major division of geological time ...Crossword Clue. The crossword clue Stretch of years with 3 letters was last seen on the June 13, 2023. We found 20 possible solutions for this clue. We think the likely answer to this clue is ERA. You can easily improve your search by specifying the number of letters in the answer.Explanation: Eon is an indefinitely long period of time which is impossible to measure. Light year is an astronomical unit of distance. it is the measure of distance light travels in one year. These units are for different quantities. so, incomparable. Incomparable Eon is an indefinitely long period of time which is impossible to measure. Light ...Sixty Years of James Bond, the official two-part charity auction presented by Christie’s and EON Productions, in celebration of the 60th anniversary of 007 on the silver screen, raised a fantastic total of £6,874,494. The 61 lots presented across the live and online auctions were 100% sold.First, Eon will buy RWE’s 76.8 per cent stake in Innogy, the renewables energy business that was spun out in 2016, and table an all-cash offer worth €40 a share, a 15.6 per cent mark-up on ...How long is an eon in years? about a billion years Eon goes back to the Greek aiōn, “age.” An age is not easy to measure, and neither is an eon. Both are just really long periods of time, but in science an eon is about a billion years. What’s longer than eons? A supereon is longer than an eon. How long is an Aeon?... years, making it entirely uninhabitable. 4,550 mya: Birth of the solar system. More than 10 billion years since the universe exploded into existence from ...Jul 11, 2022 · To be exact, an eon is defined as 1,000,000,000 years. There are 60 seconds in a minute and 60 minutes in an hour. This means that there are 3,600 seconds in an hour. There are 24 hours in a day and 365.25 days in a year. This means that there are 86,400 seconds in a day and 31,536,000 seconds in a year. An eon would then be in the trillions of ... Dec 17, 2022 · The filling of Earth’s skies with oxygen, roughly 2.1 to 2.4 billion years ago — geologists call that the Great Oxidation Event. Mass extinctions are events, as is the burst of diversity in ... The definition of “decade,” according to The Cambridge Dictionary, is “a period of ten years, especially a period such as 2010 to 2019.”. You might be familiar with common phrases like “the 90s decade” or “the 00s decade.”. These all work well to show that a period of ten years has taken place. It’s been a decade since we last ... ARCHEAN EON: 2,500: Oxygen levels rise as a result of photosynthetic organisms. First eukaryotes (single-celled algae): 1.4 billion years old. Earliest life, anaerobic prokaryotes (bacteria, archaeans) originate 3.5 billion years ago. HADEAN EON: 3,800-4,600: No life known. Cooling and solidifying of Earth's crust.May 8, 2018 · eon. e·on / ˈēən; ˈēˌän / ( chiefly Brit. also ae·on) • n. (often eons) an indefinite and very long period of time, often a period exaggerated for humorous or rhetorical effect: he reached the crag eons before I arrived. ∎ Astron. & Geol. a unit of time equal to a billion years. ∎ Geol. a major division of geological time ... Feb 28, 2020 · Geologic Time Scale: Eons, Eras, and Periods Hadean. The oldest of the geologic eons is the Hadean, which began about 4.6 billion years ago with the formation of... Archean. The next geologic eon, the Archean, began about 4 billion years ago. During this period, the cooling of the... Proterozoic. ... Sep 14, 2023 · Hadean Eon, informal division of the Precambrian occurring between about 4.6 billion and about 4.0 billion years ago. It was the time of Earth’s initial formation—the accretion of dust and gases, collisions with larger bodies, the stabilization of its core and crust, and the rise of its atmosphere and oceans. MIT scientists estimate that oxygenic photosynthesis — the ability to turn light and water into energy, releasing oxygen— first evolved on Earth between 3.4 and 2.9 billion years ago. Zeroing in on the origins of Earth’s “single most important evolutionary innovation” | MIT News | Massachusetts Institute of TechnologyYou have already learned that the Earth is 4.54 billion years old. The Phanerozoic eon began 541 million years ago (or, 0.541 billion years ago). Thus, the Phanerozoic eon represents a paltry 12% of Earth's history! Instead, most of Earth's history is represented by the three Precambrian eons.In astronomy, the Julian year is a unit of time; it is defined as 365.25 days of exactly 86400 seconds (SI base unit), totalling exactly 31557600 seconds in the Julian astronomical year. In relation to the base unit of [time] => (seconds), 1 Aeons (eon) is equal to 3.1536E+16 seconds, while 1 Years (yr) = 31536000 seconds.Figure 8.3.1 8.3. 1: Geologic Time Scale with ages shown. The Hadean Eon, named after the Greek god and ruler of the underworld Hades, is the oldest eon and dates from 4.5–4.0 billion years ago. This time …The time span of 4.5 billion years is divided into smaller segments or units called eons, eras, periods, epochs, and ages (Table 7.2). For example, the entire age of the earth is divided into four eons: the Hadean Eon, the Archean Eon, the Proterozoic Eon, and the Phanerozoic Eon. These four eons are further subdivided into eras (Table 7.3).Dec 17, 2022 · The filling of Earth’s skies with oxygen, roughly 2.1 to 2.4 billion years ago — geologists call that the Great Oxidation Event. Mass extinctions are events, as is the burst of diversity in ... Stuff To Blow Your Mind's Joe McCormick joins STDWYTK to talk the controversial theory of the bicameral mind. Find out more about it at HowStuffWorks. Advertisement Humans have been claiming to hear the voice of God for eons, but one psycho...Rocks offer many clues to deduce temperatures over the last 550 million years in the Phanerozoic Era, when complex, multicellular life took off, including that of humans. However, few such “paleothermometers” exist for the earlier Precambrian Era, spanning the Earth’s formation 4.6 billion years ago and the rise of life.During the Archean Eon, which spanned from approximately 4 billion to 2.5 billion years ago, significant geological and biological events unfolded on Earth. Notably, this eon witnessed the formation of the first continents, the development of Earth's early atmosphere, and the emergence of life in the form of simple, single-celled organisms ...May 12, 2021 · The stromatolites were dated about 3.48 billion years ago while the graphite was dated about 3.7 billion years ago. The Proterozoic Eon. Subsequent eons from the Proterozoic Eon had multicellular organisms. This eon spanned 2.5 billion years ago to 541 million years ago. The life forms continued to evolve and get advanced as the earth aged. Cambrian Period, earliest time division of the Paleozoic Era and Phanerozoic Eon, lasting from 538.8 million to 485.4 million years ago. The Cambrian System, named by English geologist Adam Sedgwick for slaty rocks in southern Wales and southwestern England, contains the earliest record of abundant and varied life-forms.The definition of “decade,” according to The Cambridge Dictionary, is “a period of ten years, especially a period such as 2010 to 2019.”. You might be familiar with common phrases like “the 90s decade” or “the 00s decade.”. These all work well to show that a period of ten years has taken place. It’s been a decade since we last ... Explanation: Eon is an indefinitely long period of time which is impossible to measure. Light year is an astronomical unit of distance. it is the measure of distance light travels in one year. These units are for different quantities. so, incomparable. Incomparable Eon is an indefinitely long period of time which is impossible to measure.5 nights of super relaxed stay and winter atmosphere. Enjoy our NYE package with lots of #magicmoments. Celebrate the end of the year and the new one with ...The eon has been further divided into different stages depending on the assemblages of life forms on Earth during the respective stages. These are the Paleozoic (541-242 million years ago), Mesozoic …Introduction. The Paleozoic Era was a major interval of geologic time. It began 541 million years ago with a rapid expansion of life-forms and ended 252 million years ago with the largest mass extinction in Earth’s history. The Paleozoic was the first of the three major eras of the Phanerozoic Eon; this is reflected in its name: paleozoic is ...More complex animals appeared in the oceans about 565 million years ago, and became much more common about 542 million years ago. ... Eon. Phanerozoic means ...Dec 17, 2022 · The filling of Earth’s skies with oxygen, roughly 2.1 to 2.4 billion years ago — geologists call that the Great Oxidation Event. Mass extinctions are events, as is the burst of diversity in ... Feb 15, 2018 · And the earliest Eon is known as the Hadean. It begins with the very formation of the Earth itself, around 4.6 billion years ago and ends 4 billion years ago. And this is the only Eon that doesn ... Archean Eon, interval lasting from about 4.0 billion to 2.5 billion years ago, the first formal division of Precambrian time. Fossil evidence of the earliest primitive life-forms appears in rocks about 3.5–3.7 billion years old; other evidence suggests that life may have emerged before 3.95 billion years ago.About 50% of the population makes new year's resolutions, but how many of us actually keep them? As it turns out, the act of making a resolution might be your first step towards failure. Here's why. About 50% of the population makes new yea...Geologic time, the extensive interval of time occupied by the geologic history of Earth. Formal geologic time begins with the Archean Eon (4.0 billion to 2.5 billion years ago) and continues to the present day. Modern geologic time scales also include the Hadean Eon (4.6 billion to 4.0 billion years ago).Aeon the Terrible (though his name is sometimes spelled Eon) is a giant talking vulture and the sole antagonist in the 1978 Christmas special Rudolph's Shiny New Year.He could live for one eon and when it was up, he would turn into ice and snow. He lives on the Island of No-Name: a giant iceberg near the north pole, where the sun never shines.The first eon is called the Hadean, and it lasted from the origin of Earth, 4.6 billion years ago, to 4 billion years ago. During this eon, the planet was very hot and had a partially molten surface.Past time on Earth, as inferred from the rock record, is divided into four immense periods of time called eons. These are the Hadean (4.6 billion to 4 billion years ago), the Archean (4 billion to 2.5 billion years ago), the Proterozoic (2.5 billion to 541 million years ago), and the Phanerozoic (541 million years ago to the present). For the Hadean Eon, the only record …25 de fev. de 2013 ... When we peer into the fog of the deep future what do we see – human extinction or a future among the stars?
Hyundai Eon is a 5 seater Hatchback with the last recorded price of Rs. 2.96 - 4.71 Lakh. It is available in 23 variants, 814 to 998 cc engine options and 1 transmission option : Manual. The Eon ... . Sam hubert
Feb 15, 2018 · And the earliest Eon is known as the Hadean. It begins with the very formation of the Earth itself, around 4.6 billion years ago and ends 4 billion years ago. And this is the only Eon that doesn ... How Long Is An Eon (And Why)? By Sandeep Bhandari / Fact Checked / Last Updated : Dec 2, 2022 Exact Answer: One Billion Years An eon is a very long time by human standards. It can be any length of time, just as several years can be any length, depending on what one measures it against. Eons are measured in billions of years. SummaryThe stromatolites were dated about 3.48 billion years ago while the graphite was dated about 3.7 billion years ago. The Proterozoic Eon. Subsequent eons from the Proterozoic Eon had multicellular organisms. This eon spanned 2.5 billion years ago to 541 million years ago. The life forms continued to evolve and get advanced as the earth aged.The eon is the broadest category of geological time. Earth's history is characterized by four eons; in order from oldest to youngest, these are the Hadeon, Archean, Proterozoic, and Phanerozoic. ... The Phanerozoic eon began 541 million years ago (or, 0.541 billion years ago). Thus, the Phanerozoic eon represents a paltry 12% of Earth's history ...The word aeon / ˈiːɒn /, also spelled eon (in American and Australian English [1] [2] ), originally meant "life", "vital force" or "being", "generation" or "a period of time", though it tended to be translated as "age" in the sense of "ages", "forever", "timeless" or "for eternity ".6 de mar. de 2017 ... PHANEROZOIC EON Visible Life 542 million years ago – today November 19 – December 31; 13. PHANEROZOIC EON 542Ma today AMPHIBIANS 370 Ma Dec 3 ...Although astronomers and geologists use the word “eon” to mean 1 billion years, it is more commonly used to refer to any long, indefinite period of time. Like the words “age,” “epoch” and “era,” it does not refer to a set number of years.The Feed-in Tariff scheme was a UK government program designed to promote the uptake of renewable and low-carbon electricity generation technologies started on 1 April 2010. Customers would generate their own renewable electricity through solar PV and be able to export that electricity back to the grid and receive payments for doing so.Hyundai EON is priced from ₹ 3.33 to 4.67 Lakh . Hyundai EON is a 5-seater Hatchback & has 13 Variants.The mileage of EON is about 21.1 - 22 KM/L. New Delhi. ... In its product cycle spanning five years, Hyundai Eon mini-hatchback has undergone subtle additions and is now readying for a makeover likely to come out around festive season this ...MIT scientists estimate that oxygenic photosynthesis — the ability to turn light and water into energy, releasing oxygen— first evolved on Earth between 3.4 and 2.9 billion years ago. Zeroing in on the origins of Earth’s “single most important evolutionary innovation” | MIT News | Massachusetts Institute of Technology(Note: A Ga refers to gigayears ago, or a billion years ago. Similarly, Ma ... The beginning of the Proterozoic Eon is characterized by the rise of oxygen on ...Introduction. The Paleozoic Era was a major interval of geologic time. It began 541 million years ago with a rapid expansion of life-forms and ended 252 million years ago with the largest mass extinction in Earth’s history. The Paleozoic was the first of the three major eras of the Phanerozoic Eon; this is reflected in its name: paleozoic is ...Eon, Long span of geologic time. In formal usage, eons are the longest portions of geologic time (eras are the second-longest). Three eons are recognized: the Phanerozoic Eon (dating from the present back to the beginning of the Cambrian Period), the Proterozoic Eon, and the Archean Eon. Less5 de ago. de 2023 ... The Proterozoic Eon is divided into three geologic time periods: Paleoproterozoic Era (2.5 to 1.6 billion years ago); Mesoproterozoic Era (1.6 ...Mar 19, 2022 · An eon, the largest division of the geologic time scale, spans hundreds to thousands of millions of years. Geologists generally agree that there are two major eons: the Precambrian eon and the ... Pinaaki Creation - Offering Kid Eon Kids Knitted Baba Suit, Age Group: 0 - 4 Years at Rs 125/piece in 24 Parganas, West Bengal. Also find Kids Baba Suit ...The stromatolites were dated about 3.48 billion years ago while the graphite was dated about 3.7 billion years ago. The Proterozoic Eon. Subsequent eons from the Proterozoic Eon had multicellular organisms. This eon spanned 2.5 billion years ago to 541 million years ago. The life forms continued to evolve and get advanced as the earth aged.The Proterozoic. It is meaning earlier life, is a geologic eon that follows the Archean. It represents the time just before the proliferation of complex life on Earth. This time period extended from 2.5 billion years ago (Ga) to 542 million years ago (Ma or Mya). It is the most recent eon within the Precambrian period, which includes the Hadean ... .