(Source: Nature Community
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Hanwu broke out
The classification element in the biological industry is often not gradually evolved, but in a relatively short period of time, the maximum biocurrent produces a total of twice. The first time was at the end of the ancient times in the ancient age of 6.5-7 billion, the printed fossil of a variety of boneless soft body animals was first discovered in the same period in the world. The most famous is Australia's Idikaran group, and during the long history of this long, life is relatively simple. The second time occurred at the beginning of the Cambrian of 570 million, the fossil of the large number of invertebrates in the world was first discovered in many places in the world. Most of the categories in animals are generated during this period, and there will be almost no new categories in the future. "Hanwu Big Breakout" has the most famous fossil site of Canada and the Chengjiang animal group in Yunnan, my country. These animal groups are not only very diverse bioces, but also form a perfect ecosystem, with a top-level predator such as shrimp. The oldest ridge animals were also found in the Chengjiang animal group. After the "Hanwu Big Broad Dream", the face on the earth is completely changed, and the history of the earth has entered the show. "Han Wu Big Broad Dream" has also happened many small-scale sudden development, such as mammals and dinosaurs, there is no great development, and rapid evolving in the dinosaur extinction Purpose. This prior to this, there was a sudden development of the quilt plants, and quickly replaced the naked plants and became the main land. There is also chrysanthemum, after a number of large-scale extinction, and then residual types can be revived quickly, differentiate a large number of new groups until the end of the Cretaceous end.
Hidden living
Cryptozoic Eon places the most of the geophysical period, the fossil left is very rare. In the early days of this period, the organism has not happened. It is followed by a period of bacteria, cyanobacteria, and the end of the earth, and there are some low eukaryotes. The hidden habit is divided into two periods in ancient times and the ancient times.
Archaeozoic ERA is the oldest geological age, starting after the formation of the Earth, ending in approximately 2.4 billion years. Although the late nucleus such as bacteria and blue algae appears in the late stage, the rocks have passed the depth deterioration during a long period of time, so the reliable fossils remains very small. Some people divide the ethical rocks in the period that is not formed into ancient times, and time is approximately 38 billion years. Yuan Anzoic ERA started approximately 2.4 billion years ago, ending the "life bomb" before approximately 570 million years ago, when bacteria and blue algae began to be prosperous, and later, there were evergarten algae, algae, etc. Algae adheres the sediment particles in the seawater during the growth process, referred to as laminated stone, laminated stone is the earliest reef on earth, appearing in ancient times, and in the ancient ages. There are some low-like invertebrates before the end of the ancient age.
Yuan ancient times is known as Snian Period, and the time is over ancient times in the ancient times ago, and Zhandu is the title of Ancient India to my country. The stations in this period were first in my country. The most famous Emperor Geological profile is located in Jixian, Tianjin, has now established a nature reserve.
Ancient generation
Paleozoic ERA began from "life bombings" in about 500 million years, from this life on the earth. The ancient generations can also be divided into ectagles and later generations. In early morning, there is ancient times including the cold, Otao Ji and Zhi Li Ji, in the past, including the mud ball disci, carboniferous discipline and the second stack. At the end of the two-fold discipline, the biological experience has experienced a huge cluster extinction, and the ancient generation ended.
Cambrian Period is the first of the ancient generation, named from an ancient name in Wales, the United Kingdom, early, middle, late, late. When the cold, the shallow seas, the many ocean invertebrates appeared in large numbers, and it is the first major development of biomariography. When the cold Wu Ji, the three-leaf worm is particularly prosperous. Therefore, the cold Wu Ji is called "three-leaf insectica", the wrist foot is second only to the three-leaf insects, and the two occupy 90% of the fossils of Cambrian, the wrist foot is still still There is a small amount of survival, becoming "activated stone". Han Wu Ji continued for 70 million years, ending about 500 million years ago, is one of the longest continuation time. The Otauvician Period is known from an ancient nation in Wales, England, early, middle, late and late. Otao Ji is the most serious period of geological history. Most of the world is covered by shallow sea, and the ocean lives with extremely rich organisms. The sea of Otisei is a beautiful reef composed of four-shot coral, horizontal corals and landscillase, etc., forms a complex ecosystem. Hailinji in the rats, the penstock and the climptic and the wrist foots in the semi-coordinated animals are very prosperous, and the original vertebrates - the crescent fish has also appeared. The parrot screw in the macrophy is the most important predator at the time, which has a wide variety, the size is different, and the maximum is a few meters long. The parrot screw only has a very small number of residuals to the present, and it is the national level of my country's national level to protect wildlife. The Silurian Period also stems from an ancient nation in Wales, England, starting from 4 million years ago. At this time, the three-leaf insects have been reduced, coral, pen stone, wrist foots, etc., and the fish began to prosper, and the huge slate is a terrible predator in the ocean. When the Ji Li Ji, the land began to put on green clothes. The original arthropod has also begun to board the land and created the history of the development of land. A drapeful Garyung's home movement occurred at the end of the report, which is a great change in the earth. Devonian Period began in a county name, premature, middle, late in the United Kingdom, started from about 400 million years ago. The mud ball disci is that the plants on the land began to develop. The plants in the morning mud basin were mainly bare fern and the original stone pine, and the mid-mud pot appeared from wedges and front naked plants. The forests of plants, Shisong and wedge leaves have been taken into size. The most striking mud pot is the advancement of fish, the original bachelorfish and the true mandible fish are very prosperous, known as "the age of fish." The fear fish in the shield skin fish can be more than ten meters and are the rulers in the ocean. In the late late mud, the ancient finish evolution becomes the earliest amphibian - fish stone. Carboniferous Period starts in 3 million years ago, it is an important coal. When charcoal, the warm and humid place on the earth is full of lush forests. The plants on the earth on the Earth, which is a quasi-scrability group mainly based on Shisong-wedge leaf, and the stone charcoal group is divided into Tropical European flora and temperate in Aquarium population. Insects in the carbonine forest, there is a huge ancient ancient dragonfly, amphibious animals include shell vertebrae and deacending, carboniferous, to late stone carbon, have the earliest reptile. Carboniferia has happened to the harboring mountain movement, and there is a large-scale ice stage in the Okaba Ancient land of the South, which has continued until the two stack of more than 80 million years ago. Permain Period is named after the initial study of the stratum is clearly divided into two parts. During the second stack of discipline, European and American plants divided into the Chinese flora and Northwest American flora, and the Okada Ancient land in the south has appeared in the tongue. The number of naked plants increased, in addition to seed ferns and Koda trees, there was a pine cypress, Soviet and Ginkgo. The plum vertebrae in the second stack of teeth is greatly developed.
The reptile starts radiation evolution, except for the original glass of draft, like a breastfeeding reptile reaches the whole Hess, the early stack of breastfeeding reptiles is a dragon, and the isothitholary is the top predator on the land. The late two-dimensional discipline is very close to the mammal, the beast, which is the largest animal, which is the largest animal that appears on the ancient land. By approximately 200 million years ago, a large-scale cluster extinction occurred, and many creatures exited historical stage, and the ancient generation ended. Born
Mesozoic ERA is the most striking era in the history of the earth, and vertebrates began to have a comprehensive prosperity and have some most incredible species. The reptile is dominated by the sea, land, and the air, so the born generation is also known as "reptile animals". Mesoi can be divided into three stacks, Jurassic and Cretaceous.
Triassic Period was named after the initial study of the formation of three parts, starting from about 200 million years ago. The three stacks of the earthquake and become a complete pan, land on the land, is covered by plants such as Pine, Susk, Ginkgo and Turmy. Dental amphibians have been extracted in three stacks, only full discriminion, and the original non-tail amphibians have appeared. The trough crawler has developed rapidly, achieving the largest diversity and evolves the original dinosaur and the earliest crocodile. In the late stage of the three stacks, the real mammals have also emerged, and they have spent a long born generation with the dinosaur. The reptile successfully entered the ocean and evolved the large marine organisms like Himalayan Fish Dragon. The six-shot coral in the ocean has become a new reef life, forming a modern type of coral reef, double-shell soft animal replaces the wrist foot, and the 石 石 石 石 类 末 末 末 末 绝 绝 绝 集 软 软The class is dominated by whole bone fish. The three-dimensional initial thief is the most primitive dinosaur, Jurassic, is known in the Jurassic, the Jurazza (now La La Mountain), starting from about 190 million years. At that time, the Earth was warm and humid, suitable for animal survival, reptiles in terrestrial and oceans and successfully occupied the sky. Until the Jurassic advanced, the wing dragon has competitors in the sky - birds, and the initiatory bird is still the earliest birds now. Jurassic's most attractive animal is naturally a huge lizard of dinosaur, the Jurassic evening lizard is full, becoming the most significant animals that have appeared on land land, only a few whales in the ocean are more than them. Heavy, other animals on land include other dinosaurs that cannot be compared to the lizard. Lianglong and wrist dragons are the longest and heaviest dinosaurs that compare the complete skeleton. I only found that some bones of the earthquake Dragon is longer, the super dragon is heavier than the wrist dragon, but the earthquake dragon may be too large Liang Long, super dragon may actually be a wrist dragon. At the end of Jurassic, although there was no complete extinction, it did not have a huge animal before the dinosaur extracted, and there was no such a huge animal. The Jurassic Large Lizard-Wrist Dragon Cretaceous (Cretaceous Period) has been named in the western European section of the sea, continuing to have the longest period of time, and from the dinosaur Until until now. Cretaceous has a reliable early quilt plant, to the late Cretaceous quilt plant, has completely occupied the dominance of the earth. The early birds begin to differentiate, and the famous Confucius Birds were initially considered to belong to the late Jurassa, and they were identified as the early Cretaceous. There are many kinds of Cretaceous dinosaurs, in the late Cretaceous, ducklon, giant dragons, rapidly, and reach great. Especially the corner dragons, the evening chalk appeared on the earth, is the most popular class in the dinosaur, but in a short time, it has evolved in a rich type. The Jurassic's prosperous huge lizard foot is in the state of decline, and only a few types are saved, and only in the southern hemisphere is relatively prosperous. Jianlong also began to decline and became the most extracted dinosaurs. At this time, the most famous dinosaur is a large animal feet dinosaurs, representatives from the Bawanglong, Shark Dragon and the South Branda, which are the largest carnivores that have appeared on the land, and the huge fierce reptiles in the ocean. It is no more than 15 meters long and the long-term length of the dragon and marine lizards can be more than 15 meters, which is larger than the current guys and big white sharks. The thick shells in the Cretaceous Ocean reached a great replacement of corals, and the coral reef of modern types was interrupted for nearly 70 million years. At the end of the Cretaceous, the animals on the ocean and land are extinguished at the end of the chalk, and only a small amount of fans are brought into difficulties. The corner dragon is very late, but very prosperous
The Cenozoic ERA will continue until 6,7 million years ago. The appearance of the earth in the new generation is gradually close to modern, and the vegetation is gradually distinguished, mammal, birds, trikish fish and insects have dominated the earth. The new generation can be divided into the third age and fourth, and the third Ji can be divided into the third discipline and the new third. Shin Xinshi rape horizontal destination Utah beast
TERTIARY PERIOD can be divided into Palaeocence EPOCH, EOCENE EPOCH, Best New World (MIOCENE EPOCH), and PLIOCENE EPOCH. Ancient New World, the beginning of Xinshi and the gradual new World said the old third, the third discipline continued until 2,5 million years ago, the vegetation was mainly forest, and the earth was strolling this kind of huge Carbirds - do not fly birds, the ocean is characterized by huge aphobust. There are many types of mammals that have now been extinct, the old continent has ankle programs, blunt and feet, fear angle, crack eye, meat and hi-ho-ho-type, the ancient beast, the beast, running rhinoceros, etc. , The new mainland has a focus animal, and the other hoopes and flash beache. There are also many existing ancestors' ancestors can also be traced back, such as the beginning ancestral horse, the origin icon, etc. The new third book includes China New World and New World. At that time, the large-scale porrose in the ocean had been extinct, and the six-shot coral developed a large number of large coral reefs. On the land, the prairie is beginning to adapt to the new herbal animals that are grazing, and the face of the earth is more close to now. The number of animals in the new third time is the most history, all kinds of rhinoceros and ancient elephants, at this time, there are also various ancient holes in the forest.
Updating the world of Ni Ander
The Quatrenary Period can be divided into pleistocne epoch and the new world (HOLOCENE EPOCH), starting from approximately two million or 3 million years ago, the specific time is not determined, and now it is also the fourth. There are two big things in the fourth (one of the large-scale ice, one is the emergence of human and modern animals. About the world is the period of the global glacier role, and there is a "glacial era", the ice period and the helic period are constantly alternating, corresponding to the climate cold and warmth period. Without glaciers, there is a humid and drought period alternating, called "flood period" and "flooding period", and updated the world, also known as "flood". The tropical rainforest of Amazon, who has retraced into the island in the drought period. Updating the world's moving plants have been greatly affected, and many of the current animal geography and plant geographic phenomena are derived from times, and in the southern animal groups have been more stable, the giant panda-sword is continued for a long time. After about 10,000 years ago, I entered the new world, or called "Ice later", also known as "impulse". When the new generation begins to enter the agricultural civilization, the impact on the nature is increasing, and after entering the industrial civilization, it has changed the face of the entire earth. Due to the damage caused by the biological extinction and ecosystem caused by human activities, it is more than ever. serious.
Ice Age
The area of the glaciers on the earth is now 14.97 million square kilometers, accounting for 10% of the land area, but in the history of the earth, the area of the glaciers has been large, forming a large ice stage (ICE AGE). There is a total of three times a total of the large ice period, and the cycle is approaching 3 million years. The first time occurred at approximately 60 million years ago, it is called the big ice of the Dynasty. This big ice is slightly different in the world's mainland. At that time, the animals on the earth were still poor. The second time occurred at about 300 million years ago to the second stack, this big ice is mainly in the ancient Okaba Ancient Lu, which has occurred earlier in South America and Africa, in India and Australia. After retreating, the glacier retreats, there is a large-area tongue rice plant group. The third large ice is the most famous fourth-year-old ice, and it is also the most influential ice. Trich is the representative species of the fourth Ji Daqiu period
The grateful expansion and subsidation of the ice in the fourth Ji Dazhi, which are called the Ice Exponation (Interglacial EPPOCH). Generally speaking, the current earth is in the inter-ice period, the fourth Jura Ice is short twice more time, and now the climate is more cold than the history, so the fourth Ji Dazhi should not end. The fourth Ji Daqiu is actually not limited to the fourth, and it has begun to start early. The number of ice and time in the world of ice and time is not exactly the same. The specific time of each ice is also controversial. The Antarctic glaciers will have more time to be much more early, and there is more than 20 million years ago. A large ice cover has been formed. Ice is divided into the Alps, the Ice period of the Alps is divided into the four ice during the jade ice period, the Risse, the people 's refrigeration and the Gogz Ice, and later discovered a more old Danube Ice and Bibei ice, the most detailed in which the old mahogany is studying. The last ice period is different from around the world, and it ends about more than 10,000 years ago. At the end of the fourth Ji Da, the area of the glacier is 47.14 million square kilometers, accounting for 32% of the land area, and the entire Canada and Nordic are covered with the ice cover. After the glacier has rested, there is a large-scale lake group, so Canada and Finland have become "Thousand Lakes". The fourth Ji Dazhi has made the face on the earth, but does not cause large-scale cluster extinction, species can be returned to a few "refuge" to survive. East Asia and the eastern part of East Asia are "refuge", which is preserved for more ancient species, and Europe's Alps hinders the south movement of species, so European biological species is much less than China. There are many large mammals disappeared on the Earth, and many scholars are now trustworthy. They are not caused by human activities.
The extinction of biological diet is not always constant, gradually, often has a large-scale cluster extinction, the whole department, the whole, and even the organism can completely disappear or only a few in a short period of time. Resignation. During the cluster extinction, it is often all species in the entire classification unit. Regardless of the status in the ecosystem, it has escaped this rucement, and it is often a lot of different biological groups, but there are some other groups. Fortunately, there are still some groups of birth or starting to prosper. The large-scale cluster extinction has a certain periodic period, which will occur once, but the cluster extinction has the greatest impact on animals, while the cluster of land plants is not significant as animals.
