Nearly 4 billion years after the birth of the Earth, a large number of prokaryotes such as bacteria and cyanobacteria appeared.
During this time, eukaryotes have not appeared, so they are called Cryptozoic.
(1). 埃迪卡拉紀︰又稱震旦紀，一般指6.35 - 5.41億年前，最古老的動物遺跡可追溯至十億年前，但最早的動物化石出現於埃迪卡拉紀。
Ediacaran : also known as Sinian, generally refers to 635 - 541 million years ago. The oldest animal remains can be traced back to one billion years ago, but the earliest animal fossils appeared in Ediacaran.
Prokaryote : After nearly four billion years of evolution the prokaryotes that have been living in the Cryptozoic have only evolved into eukaryotes in the Phanerozoic Cambrian period 570 million years ago, which is the history of the evolution of the earth's.
(3). 代表生物︰古細菌 - 常生活於熱泉水、缺氧湖底、鹽水湖等極端環境中。古核細胞遺傳的信息量較小，是世界上最早的生物。
Representative organism : Archaea - often live in extreme environments such as hot spring water, anoxic lake bottom, and lagoon. Paleokaryocyte has less genetic information and is the earliest organism in the world.
寒武紀是顯生宙的開始，距今約5.42億年前 - 4.85億年前。 寒武紀是現代生物的開始階段，是地球上現代生命開始出現、發展的時期。
The Cambrian is the beginning of the Phanerozoic, about 542 million years ago - 485 million years ago. The Cambrian is the beginning stage of modern living creature and it is the period when modern life on earth begins to appear and develop.
Supercontinent and flood : During the Cambrian period, hard-shelled animals first appeared in large numbers, and many continents were flooded by shallow seas.
Supercontinent Gondwana formed the largest continent in the Pan-African fold belt at that time.
Cambrian explosion : 600 million years ago, the vast majority of invertebrates appeared in a very short period of time, with shelled, skeletal marine invertebrates tending to prosper.
(3). 代表生物︰三葉蟲 - 寒武紀時期最繁盛的是節肢動物三葉蟲，故寒武紀又稱「三葉蟲時代」。三葉蟲沒有遇到有力的競爭對手，成為寒武紀海洋王國中的統治者。
Representative organism : Trilobite - The most prosperous in the Cambrian period was the arthropod trilobite, so the Cambrian is also known as the "trilobite era". Trilobites did not encounter strong competitors and became the rulers of the Cambrian marine kingdom.
Ordovician is a period from 485 million to 443 million years ago. It was one of the most extensive transgressions in history. There was a large-scale glacial period in the end of Ordovician.
(1). 第一次生物滅絕︰奧陶紀晚期，一束來自6000光年以外的伽馬射線擊中了地球，致命的射線、飢荒、毒氣以及冰期構成了第一次物種大滅絕 -- 伽馬射線暴擊中的地球事件，造成了地球上的60%的物種減絕。
The first extinction : In the late Ordovician, a beam of gamma rays from 6,000 light-years away struck the Earth. The deadly rays, famine, poison gas and glacial period constituted the first mass extinction of species -- The event of gamma rays hitting the earth resulted in the extinction of 60% of the species on the earth.
Transgression era : Ordovician is an era in which continental areas suffered extensive transgression, volcanic activity and crustal movement were more intense, and climate differentiation and glacier development were also in progress.
(3). 代表生物︰無頜魚類 - 最早的魚類是無頜類。它們沒有上下頜，嘴很寛，頭邊緣長著奇怪的骨板。
Representative organism : Agnatha - The earliest fish was the jawless. They have no upper and lower jaws and their mouths are wide. There are strange bone plates on the edge of the head.
Silurian is a period from 440 million to 410 million years ago. Transgression occurred everywhere in Early Silurian, reached its peak in Middle Silurian, and retreated and uplifted land in different degrees in Late Silurian, showing a huge transgression cycle.
Graptolite Era : Silurian is known as the age of graptolites, which are the most striking types of creatures in the Silurian marine floating ecosystem. Graptolites are widely distributed and evolve rapidly, and the same species can be found in many continents of the world.
Plant landing : Due to the violent orogenic movement, the ocean area has decreased and the continent has expanded. As a pioneer of terrestrial higher plants, low vascular plants began to appear and gradually occupied the land.
(3). 代表生物︰有頜魚類 - 脊椎動物中，有頜的盾皮魚類和棘魚類出現是脊椎動物演化史上的重大事件，魚類開始征服水域，為泥盆紀魚類大發展創造了條件。
Representative organism : Jaw fish - Among vertebrates, the emergence of jawed shield fish and spiny fish is an important event in the evolution history of vertebrates. Fish began to conquer the waters, which created conditions for the development of Devonian fishes.
Devonian is a period from 410 million to 350 million years ago. Amphibians appeared in the late Devonian.
The second extinction : In the late Devonian period, more than 30 billion cubic kilometers of magma, extreme climate, millions of years of long nights, a large number of toxic gases, anoxic sea water and glacial period constituted the super-mantle plume extinction event. Marine life was seriously damaged and 82% of marine species were extinct.
(2). 魚類時代︰脊椎動物進入飛躍發展時期，各種魚類空前繁盛，有頜類、甲冑魚數量和種類增多，現代魚類 -- 硬骨魚開始發展。 因此泥盆紀常被稱為「魚類時代」。
Fish Era : Vertebrates have entered a period of rapid development, and all kinds of fishes are flourishing unprecedentedly. The number and species of jawfishs and ostracoderms have increased. Modern fishes -- bony fish, have begun to develop.
Therefore, the Devonian is often referred to as the "Fish Era".
(3). 代表生物︰鄧氏魚 - 鄧氏魚的咬合力能夠達到5000千克，被稱為是霸王龍出現前史前咬合力最巨大的史前生物、巨齒鯊先前咬合力最大的史前魚類。
Representative organism : Vertebrate - The bite force of Dunkleosteus can reach 5,000 kilograms. It was the prehistoric creature with the greatest bite force before Tyrannosaurus Rex appeared and the prehistoric fish with the greatest bite force before the emergence of Megalodon.
Carboniferous is a period from 355 million to 295 million years ago. Carboniferous terrestrial organisms developed unprecedentedly. At that time, the climate was warm and humid, and large-scale forests appeared, which created favorable conditions for the formation of coal.
(1). 燃煤事件︰石炭紀晚期，植物的枯枝形成了一層厚達30米的煤炭，地幔岩漿活動劇烈，產生高溫，煤炭在高溫下燃燒，有毒的氣體、高溫構成了造成46%的物種大滅絕 -- 石炭紀燃煤事件。
Coal burning event : In the late Carboniferous, the withered branches of plants formed a layer of coal up to 30 meters thick. Magmatic activity in the mantle was intense, producing high temperatures, coal burning at high temperatures. Toxic gases and high temperatures constitute the Carboniferous coal-burning event that caused the extinction of 46% species.
Giant Era: Carboniferous atmospheric oxygen content reached 35%, very suitable for the reproduction of arthropods, thus breeding a large number of giant insects. Giant spiders the size of human heads, giant centipedes about 3 meters long, giant dragnflies with wingspan of nearly 1 meter, etc.
(3). 代表生物︰普莫諾蠍 - 石炭紀時期生活在陸地上的肺蠍，全長可達70厘米，肺蠍是可怕的殺手，主要捕捉其他節肢動物作為食物。
Representative organism: Pulmonoscorpius kirktonensis - Lung scorpions lived on land during Carboniferous Period, up to 70 centimeters in length. Lung scorpions were terrible killers, mainly catching other arthropods as food.
The Permian period was a period from 299 million ago to 250 million years ago. The expansion of land area, the shrinking of the ocean range, and the changes in the natural geographical environment indicate the arrival of a new period in the history of biological development.
The third extinction : In the late Permian period, 20,000 cubic kilometers of broken rocks, toxic gases, 70 degrees of high temperature, tens of thousands of years of acid rain and 400,000 years of long nights resulted in extinction of Siberian dark rock, the most serious disaster in the history of the earth, it extinct 98% of the creatures.
Pangea : 250 million years ago, the continents on the earth were adjacent to each other and merged to form a supercontinent named 'Pangea', pangea eventually split into the southern Gondwana continent and the northern Laura continent.
(3). 代表生物︰裸蕨植物 - 二疊紀早期的植物以真蕨為主，晚期代之以較耐旱的裸子植物。
Representative organism : Pteridophyta - In the early Permian period, most plants were filicophytina, then they were replaced by the more drought-tolerant gymnosperms in the late period.
Triassic is a period from 250 million to 200 million years ago. It lies between Permian and Jurassic. The beginning and end of Triassic are both marked by one extinction event.
(1). 第四次生物滅絕︰三疊紀晚期，滾燙的蒸汽、1800立方千米岩漿、有毒氣體、極端氣候、數萬年的酸雨等構成了中大西洋岩漿區滅絕事件，造成 70% 的物種滅絕，還造成盤古大陸分裂。
The fourth extinction : Late Triassic, hot steam, 1800 cubic kilometers of magma, toxic gases, extreme weather, tens of thousands of years of acid rain constitute the extinction of the Mid-Atlantic magma region, causing 70% of species to extinction, and also caused the Pangea to split.
(2). 大陸分裂︰三疊紀間共有一塊大陸，被稱為泛古陸，即岡瓦納古陸。 到三疊紀中期，泛古陸開始出現分裂的前兆，在北美洲、歐洲中部和西部、非洲的西北部均出現了裂痕。
Continent division : There was only one continent during the Triassic period, which was called Pangea and the Gondwana. In the middle of the Triassic, Pangea was beginning to show signs of division, and cracks appeared in North America, Central and Western Europe, and northwest Africa.
(3). 代表生物︰裸子植物 - 裸子植物自三疊紀起迅速發展起來，到了中三疊紀植物才開始逐漸繁盛，晚三疊紀時，裸子植物真正成了大陸植物的主要統治者。
Representative organism :Gymnospermae - The gymnosperms developed rapidly since the Triassic, and plants began to flourish in the middle Triassic. In the Late Triassic, gymnosperms became the main rulers of mainland plants.
The Jurassic period was a period from 1.9 billion to 145 million years ago. The Jurassic period was the second period of the Mesozoic era and began in the Triassic-Jurassic extinction.
Aerial organisms : The pterosaurs with cortical wings were the dominant creatures in the air. Early birds also appeared. The most famous is the archaeopteryx. The aerial creatures and terrestrial creatures also evolved.
Era of dinosaurs : The Jurassic period was the heyday of dinosaurs. The dinosaurs quickly became the rulers of the earth. All kinds of dinosaurs came together to form a world of various dinosaurs.
(3). 代表生物︰雙脊龍 - 生活於早侏羅紀，曾多次出現在大眾文化中，最著名的是在電影<<侏羅記公園>>中被描述為會噴毒液的恐龍，但沒有證據可以顯示雙脊龍有這種行為。
Representative organism : Dilophosaurus - lived in the early Jurassic and has appeared in popular culture many times. The most famous one is described as the dinosaur that sprays venom in the movie "Jurassic Park", but there is no evidence to show that they used to behave like this.
The Cretaceous Period was a period from 145 million ago to 66 million years ago, when the continents were separated by the oceans and earth became warm and dry. Dinosaurs still dominate landing sites, pterosaurs glide in the sky, and giant marine reptiles dominate shallow seas.
(1). 第五次生物滅絕︰白堊紀晚期，一顆巨大的隕石撞擊地球，2.1 萬立方公里的物質進入了大氣中，地球表面溫度迅速降低，植物枯萎死亡，造成了大量生物滅絕，長達1.6億年之久的恐龍時代終結。
The fifth extinction : In the late Cretaceous, a huge meteorite hit the earth, 21,000 cubic kilometers of material entered the atmosphere. The surface temperature of the earth rapidly decreased, the plants withered and died, causing a large number of extinctions, which ended the 160 million-year-long dinosaur era.
Plate movement : Plate movement has resulted in a large number of submarine mountains, which in turn caused global sea level rise. The rift between South America and the African continent expanded to form the South Atlantic, and the North Atlantic rift lies in Greenland and the east of North America.
(3). 代表生物︰迅猛龍 - 生活在晚白惡紀時期，在電影<侏羅紀公園>中，迅猛龍覆蓋著鱗片，但之後研究發現大部分的手盜龍類身體應該覆蓋著羽毛。
Representative Organism : Velociraptor - lived in the Late Cretaceous period. In the movie Jurassic Park, they are covered with scales. But later studies found that most of the body of the Maniraptora should be covered with feathers.
第三紀-古近紀 Tertiary - Paleogene
Paleogene is a period from 66 million to 23 million years ago. The Paleogene is a period of rapid development of mammals.
Extreme heat event : Extremely hot event is the fastest and most intense global warming event on earth, resulting in the rapid extinction of a large number of species.
(2). 哺乳動物︰古近紀動物界的基本特點是哺乳動物的迅速輻射演化。 除了適應陸地生活的多種方式外，還出現了天空飛翔的蝙蝠類和重新適應海中生活的鯨類。
Mammal : The basic feature of the Paleogene animal world is the rapid radiation evolution of mammals. In addition to the various ways of adapting to land life, there was also bats flying in the sky and whales re-adapting to life in the sea.
(3). 代表生物︰鬣齒獸 - 外形很像鬣狗，但力量要比現今的獅子強大得多，它的雙頜具有每平方英尺1000牛的驚人咬力，牙齒和頜骨的結構類似一把大剪刀，可以迅速致獵物於死地。
Representative organism : Hyaenodon - looks like hyena, but are much stronger than the lions. Their jaws have an astonishing bite of 1,000 cows per square foot. The teeth and jaws are similar in structure to a large pair of scissors, which can kill its prey quickly.
第三紀-新近紀 Tertiary - Neogene
Neogene is a period from 23 million to 2.6 million years ago. The Neogene biosphere is closer to modern times. Large-scale glacial activities occurred. It is an era of high development of mammals and angiosperms. Human beings appeared in this era.
Himalayas : In terms of crustal movement, during the Pilocene, many of the Neogenes formed during the Paleogene continued to rise and the mountains were basically similar to modern times, such as the European Alps, the Asian Himalayas, and the South American Andes.
Humanoid : Whether it is marine or terrestrial animals, the Pilocene animals had been quite modern, terrestrial animals were still primitive, and the earliest humanoid animals appeared at the end of the Pilocene.
(3). 代表生物︰劍齒虎 - 是遠古長有可怕的匕首狀上犬齒的最大貓科動物，上犬齒最長可達120毫米，是當時最具優勢的大型食肉動物。
Representative organism : Machairodus - is the largest Felidae with terrible dagger-like upper canine teeth in ancient times. The upper canine teeth can reach up to 120 mm in length. It was the most dominant large carnivore at that time.
資料來源︰生命簡史 古生物放置 遊戲的資料