Pterosaur (pterosaur) Original intent was to "flying reptiles." These organisms is different from the dinosaurs, the dinosaurs did not fly. Mesozoic Triassic pterosaur appear in the Earth the first vertebrates to fly, but some suspect it is only illusory, at best, can only glide in the sky. However, the latest research shows that because of its balance of information processing in the brain nerve tissue well-developed, like the pterosaurs can not only fly like birds, but is likely to be flying ace. Researchers at Ohio State University in the latest issue of "Nature" magazine reported that they use a computer imaging scan stratified according to established a pterosaur fossil three-dimensional images of the brain. Images show well-developed leaves of pterosaurs in the cerebellum, the quality of the 7.5% of brain mass, is known to the highest proportion of vertebrates. In contrast, good at flying birds in the cerebellum of their brain mass leaves are only 1% to 2%. World's first pterosaur fossil embryos, the recent Jehol Biota in western Liaoning in China by paleontologists Wang Xiaolin, Dr. Zhou Zhonghe found. June 10 this year, the relevant research papers published in academic journals --- the world's most famous British "Nature" magazine. Since this major discovery, "Nature" magazine is still on its website home page, "Today's News" section at the same time allotment of the relevant news reports and pictures. In the June 11 edition of the American "Science" magazine, also reported that important. Is the largest pterosaur pterosaur Phi Plumed Serpent. His wings, 12 meters long. Found. Because of this extremely valuable piece of fossils, people today have been strong evidence that these pterosaurs and dinosaurs, the same time the simultaneous extinction of about 7,000 years earlier than birds fly sky air supremacy is not a Mesozoic viviparous, but like other reptiles and birds as oviparous. Back in March, Chinese Academy of Sciences Institute of Vertebrate Paleontology and Paleoanthropology, a researcher Wang Xiaolin told reporters on a major show of their discovery. It is said that it was a pterosaur fossils have not yet hatched, the developing pterosaur embryo, the skeleton, and clearly visible. It is Wang Xiaolin Zhou and two researchers and colleagues Jehol Biota in western Liaoning inspection found. Yixian Formation in western Liaoning Jinzhou fossils from sedimentary strata in a lake, about 121 million years ago. This site has found a large number of beautifully preserved fin wolf fish, crocodiles and some pterosaurs Manchuria and bird fossils. However, the significance of it seems much more than that, in the scientific exploration of the road, it is more like a magical space shuttle, from 121 million years later, people are still able to live Glimpse many details of the prehistoric pterodactyl. Embryo fossils to convey the most clear signal: pterosaurs, and birds and other reptiles are oviparous rather than viviparous the same. "I believe that it solved a mystery." Said Wang Xiaolin, "maximum information it conveys is that pterosaurs are oviparous, not viviparous." All along, the pterosaur is viviparous or oviparous, is full of controversial topics. Although pterosaurs are found from the 18th century there have been reports that some dragon eggs is considered to be fragments of wings, but there is no scientific evidence to prove that the pterosaur eggshell fragments is, therefore, found the first one wing of the dragon egg , is the first pterosaur fossil embryos, of great significance. According to Wang Xiaolin introduction, pterosaurs are close relatives of dinosaurs, both living in the same era, was the first blue sky flying reptiles, the pterosaurs is often mistaken for a "flying dinosaurs." Pterosaurs originated about 2.2 billion years ago in the Late Triassic mass extinction at the end of the Cretaceous 65 million years ago. To occupy the land when the dinosaurs, the pterosaurs have been in control of the sky. Pterosaur with a bird similar to today's complex behavior. Scientists have reason to believe, they are a way to reproduce oviparous, lay their eggs in the lake or beach sand, perhaps hatchery, take care of their young. Pterosaurs is a very special class of reptiles, with unique structural characteristics of bone. Back in 1784 Italy, Germany, a paleontologist Coligny first pterosaur fossil found, even not sure which category it belongs to animals, some people think it lives in the ocean, some people think it is birds and bats transitional type and so on. Until 1801, the famous French comparative anatomist Georges Cuvier was identified it as pterosaurs, attributed to reptiles. In fact, the pterosaur fossil found in over half a century earlier than the dinosaurs, pterosaurs fossils have been found since, it is the earliest of such a very strange animal into the sky full of curiosity, has been hard to explore. Pterosaurs highly specialized forelimbs, 4, thicker longer refers to a flying wing that it formed by the four-wing phalanx, there is no front claws, and front legs together constitute a solid flying wing leading edge, support and link with the body side and hind the film, the formation of bird can fly with wings like wing membrane. Development of a unique pterosaur wrist of the wing to reach the shoulder bone, play a supportive role on the wing membrane. The first three refer to the outside of the growth in the wing membrane, the small claw hook into the fifth refers to the degradation disappeared. Support the flying pterosaur wing membrane structure, completely different from the later vertebrates to fly birds and bat wings --- structure. Pterosaur embryo is no doubt, no doubt saved skeleton filling. "Not only bone intact and preserved wing membranes and skin, fiber, shell and its papillary structure is also well preserved." Researcher Wang Xiaolin told reporters. Conditions for the preservation of the fossil skeleton, the scientist is "beautiful" word to describe. Through a microscope, the reporter expression was observed more clearly. Smooth boundary eggs, the eggs are brown, darker in color, with sallow clear distinction between the surrounding rock. "There is no doubt belongs to pterosaur embryo, because the preservation of the skeleton showed a considerable length of 4 fingers and a well-developed triangular ridge of the humerus." Wang Xiaolin said, "In addition, in many regions, the size of a regular saving close to almost equal circular structure of the papillary ornamentation, which is direct evidence of eggshell and embryo. " Surprisingly, in the side of pterosaur fossil embryos, there is actually a fish fossil. "In nature, a species found in the fossil embryos, it is not easy, but this discovery is particularly important, it is not a common species, but the first one into the sky, is the only vertebrate extinction of three flying wing embryos for the first time that the dragon. "Wang Xiaolin said. However, it is more "legendary" and does not stop them, one side of the pterosaur fossil embryos, there is actually a fish --- and pterosaurs living in the same era fossil Lycoptera the two exist side by side, very rare. Such a "perfect match" who inspired the fossil imagination is shocking. Body fossils of two small but very fine preservation, fish bones and scales intact. Two types of animals at the same time as volcanic eruptions lead to death "the end" when the story seems fresh. Birds have long wings and body of the flight feathers, very effective insulation, bat wing membrane although no feathers on the wings to fly but play an important role for the support of three phalanges. Pterosaur wing membrane in addition to the distribution of fibers, there is no bone support, therefore, the traditional view that pterosaurs did not like the birds, free, long-distance flying in the sky, only the living environment in its vicinity such as beach, lake, rock or glide in the woods or on the water circled. However, the latest on pterosaur brain ct scan, and straps and other studies show that pterosaurs did not just able to glide for short distances, and are likely to have a strong ability to fly. So far, the world has discovered more than 120 named species of pterosaur fossils. Pterosaur body size and shape are very different, and the larger 70 as the 20th century, discovered in Texas pterodactyl fossils, and its wings expand about 12 meters, width is equivalent to f-16 fighter, who form a small sparrow . Pterosaurs have two categories, long beak early the relatively primitive, mainly living in the Jurassic, there is a very long tail; late pterodactyl principal lived in the Cretaceous, the tail is very short or even disappear. In addition, the city found the body in the Neimengguning coverage "feathers" Rehe Pterosaur complete skeleton, further evidence of pterosaurs as warm-blooded animals. Recently in Brazil, a huge sea-skimming pterosaur's head crest-like structure capable of regulating body temperature found in the blood vessels of the prints, but also direct evidence of pterosaurs as warm-blooded animals. Another evidence of pterosaur bones from some like birds regulate body temperature with a small balloon. In fact, the pterosaur flight in order to meet the needs of heat and temperature has been constant with the physiological mechanism, higher metabolism and nervous system development and efficient circulatory and respiratory systems, as a class most like crawling reptiles animals. Pterosaurs are close relatives of dinosaurs living in the same era, is the blue sky flying reptiles, are sometimes mistaken for "flying dinosaurs." Pterosaurs originated about 215 million years ago, the Late Triassic extinction 500 million years ago, on 6 end of the Cretaceous. When dinosaurs dominated the land with, the pterosaurs control the sky. Pterosaurs is a very special class of reptiles, with unique structural characteristics of bone. Back in 1784, Italy in the German paleontologist Coligny first pterosaur fossil found, even not sure which category it belongs to animals, some people think it lives in the ocean, some people think it is the birds and bats transitional type and so on. Until 1801, Cuvier was identified as a pterodactyl it, attributed to reptiles. Pterosaurs are not as free as bird, flying long distances in the sky, only the living environment in its vicinity, such as beach, lake, rock or glide in the woods, sometimes circling the water also. Pterosaurs earlier than birds into the sky about 7 ooo years, began around the late Triassic to adapt to the air life, successful life on Earth 1.5 billion years. In order to meet the needs of flying pterosaurs, birds with many similar skeletal features, such as the skull porous, lightweight hollow bones, sternum and keel over, and so unexpected. So far, the world has discovered more than 120 named species of pterosaur fossils. Pterosaur body size and shape are very different, and the larger above 70 years of a century in the United States, Texas, pterodactyl fossil found in its wings expand about 16 meters and a width equal to f 16 fighter jets, while the small form sparrow. Pterosaurs have two categories, long beak early the relatively primitive, living mainly in the Jurassic, there is a very long tail; late pterodactyl principal lived in the Cretaceous, the tail is very short or even disappear. Pterosaurs are reptiles, but it is likely to be warm-blooded animals. 20 century, the British paleontologists had speculated that the ability of pterosaurs with fast motion, like bats, hairy body, and have similar living habits of birds, is a constant body temperature of warm-blooded animals. Was found in Germany beak fossil, found Mao's prints. In 1970, in Kazakhstan found a relatively complete with "feathers" pterosaur fossils, the British paleontologist hairs by these specimens and the wing of the membrane structure, that it no doubt belongs to warm-blooded animals. Pterosaur body of these "gross" thermal insulation to prevent body heat loss, with the role of regulating body temperature. Another evidence comes from the pterosaur bones, like birds they have some small balloon used to regulate body temperature. Recently, western Liaoning Province in China with "feathers" Rehe pterosaur found further evidence of at least some small pterosaurs as warm-blooded animals. More and more fossil evidence that some pterosaur flight in order to meet the needs of heat and temperature has been constant with the physiological mechanism, higher metabolism and nervous system development and efficient circulatory and respiratory systems, as a class Unlike most reptiles reptiles. Flourished in the Mesozoic Jurassic (208 million years ago to 144 million years ago) and Cretaceous (144 million years ago to 6,640 million years ago) members flying reptiles. Pterosaur head (pterosauria) Cologne is subclass of reptiles (archosauria). Dinosaurs and crocodiles also belong to class subclass Cologne, Cologne birds are descendants of the class. Triassic (245 million years ago to 208 million years ago) tend to two-legged gait Cologne class, so forelimbs free for other applications. Both birds and pterosaurs as the forelimbs into wings. Pterosaur wing formed by the film, like the bats rather than birds. In addition to the bat thumb, supported by other phalanx film. However, the membrane is only attached to the pterosaur, a slender means tilting (4th finger) on the back along the side of the body extends to the knee; in the neck with the "arm" attached between the coating. Phalanx to the previous three slender hook-like claws. The film appears to have fully adapted to fly and glide, but not as good as the bat wing membrane or birds flexible and more vulnerable. Well built, after the leg is thin, its structure shows that the vertical movement or not suited to stop, rest, hanging by the hind legs. Seems to hold the neck upright when in flight, and even at right angles to the head and move forward. Skull light and strong, most of the bones together; a slender mouth; eyes as large as many birds as the eye by a series of bony plates in their walls (scleral ring) by the reinforcement. Great minds obviously be compared with the bird. This class is the dominant visual sense rather than sense of smell. Most of the fossils found in marine sediments, is likely to fishing by diving for food-stuffs. But it is difficult to understand how to fly backward off from the ground or water. There are two main categories known pterosaur. Although there are early type of the Late Triassic, but in the Late Jurassic Solnhofen (solenhofen) slate in the long beak is (rhamphorhynchus) is more typical of the original. The features include a sharp change of such a large sharp teeth, a shorter (the bone supporting finger) metacarpal, a diamond tip tail. Wingspan of about 1 meter (3.3 feet). The second largest category of pterosaurs appeared a Late Jurassic, continued into the Cretaceous, Jurassic typically refers to the dragon is a type of wing (pterodactylus), many specimens were found in Solnhofen slate. Dragon wing means (pterodactyl) is generally small reptiles, some as small specimens and sparrows, features include small teeth, long metacarpals, short tail. Refers to the descendants of the dragon-type wing extended to the Cretaceous, usually larger. Represented the best in the Kansas chalk layer is Pteranodon (pteranodon). Pteranodon is a large ratio of albatross with a wingspan of 7 meters or more. In 1975, the Texas Big Bend (big bend) National Park of the Late Cretaceous non-marine strata, we found three very large part of pterosaur bones, the largest wingspan of about 15.5 male specimen feet (51 feet), making it the largest flying animals seen and heard. The anatomical and fossil reptiles found at the terrain that is the flesh of their diets rather than the fish. No more than the Cretaceous pterosaur fossils, which in nature is the real status of birds replaced.
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No. 2
Pterosaur (Pterosaur) Pterosaur skeleton means "flying reptile" is a very special class of reptiles, can fly and is likely to be warm-blooded animals. Mesozoic Triassic pterosaur appear in the Earth the first vertebrates to fly, but some suspect it is only illusory, at best, can only glide in the sky. However, the latest research shows that because of its balance of information processing in the brain nerve tissue well-developed, like the pterosaurs can not only fly like birds, but is likely to be flying ace. Researchers at Ohio State University in the latest issue of "Nature" magazine reported that they use a computer imaging scan stratified according to established a pterosaur fossil three-dimensional images of the brain. Images show well-developed leaves of pterosaurs in the cerebellum, the quality of the 7.5% of brain mass, is known to the highest proportion of vertebrates. In contrast, good at flying birds in the cerebellum of their brain mass leaves are only 1% to 2%. Phi pterosaurs Plumed Serpent (Dragon pterosaur) is the largest pterosaur pterodactyl. His wings, 16 meters long, equivalent to the size of an aircraft. Sen Lin Yilong seclusion The smallest arboreal pterosaur fossils - seclusion Sen Lin Yilong, a wingspan of only 25 cm, equivalent to the size of a swallow or sparrow. Back in March, Chinese Academy of Sciences Institute of Vertebrate Paleontology and Paleoanthropology, a researcher Wang Xiaolin told reporters on a major show of their discovery. It is said that it was a pterosaur fossils have not yet hatched, the developing pterosaur embryo, the skeleton, and clearly visible. It is Wang Xiaolin Zhou and two researchers and colleagues Jehol Biota in western Liaoning inspection found. Yixian Formation in western Liaoning Jinzhou fossils from sedimentary strata in a lake, about 121 million years ago. This site has found a large number of beautifully preserved fin wolf fish, crocodiles and some pterosaurs Manchuria and bird fossils. However, the significance of it seems much more than that, in the scientific exploration of the road, it is more like a magical space shuttle, from 121 million years later, people are still able to live Glimpse many details of the prehistoric pterodactyl. Embryo fossils to convey the most clear signal: pterosaurs, and birds and other reptiles are oviparous rather than viviparous the same. "I believe that it solved a mystery." Said Wang Xiaolin, "maximum information it conveys is that pterosaurs are oviparous, not viviparous." All along, the pterosaur is viviparous or oviparous, is full of controversial topics. Although pterosaurs are found from the 18th century there have been reports that some dragon eggs is considered to be fragments of wings, but there is no scientific evidence to prove that the pterosaur eggshell fragments is, therefore, found the first one wing of the dragon egg , is the first pterosaur fossil embryos, of great significance. According to Wang Xiaolin introduction, pterosaurs are close relatives of dinosaurs, both living in the same era, was the first blue sky flying reptiles, the pterosaurs is often mistaken for a "flying dinosaurs." Pterosaurs originated about 2.2 billion years ago in the Late Triassic mass extinction at the end of the Cretaceous 65 million years ago. To occupy the land when the dinosaurs, the pterosaurs have been in control of the sky. Pterosaur with a bird similar to today's complex behavior. Scientists have reason to believe, they are a way to reproduce oviparous, lay their eggs in the lake or beach sand, perhaps hatchery, take care of their young. Pterosaurs is a very special class of reptiles, with unique structural characteristics of bone. As early as 1784 in Italy, Germany, a paleontologist Coligny first pterosaur fossil found, even not sure which category it belongs to animals, some people think it lives in the ocean, some people think it is birds and bats transitional type and so on. Until 1801, the famous French comparative anatomist Georges Cuvier was identified it as pterosaurs, attributed to reptiles. In fact, the pterosaur fossil found in over half a century earlier than the dinosaurs, pterosaurs fossils have been found since, it is the earliest of such a very strange animal into the sky full of curiosity, has been hard to explore. Pterosaurs highly specialized forelimbs, 4, thicker longer refers to a flying wing that it formed by the four-wing phalanx, there is no front claws, and front legs together constitute a solid flying wing leading edge, support and link with the body side and hind the film, the formation of bird can fly with wings like wing membrane. Development of a unique pterosaur wrist of the wing to reach the shoulder bone, play a supportive role on the wing membrane. The first three refer to the outside of the growth in the wing membrane, the small claw hook into the fifth refers to the degradation disappeared. Support the flying pterosaur wing membrane structure, completely different from the later vertebrates to fly birds and bat wings --- structure. Pterosaur embryo is no doubt, no doubt saved skeleton filling. "Not only bone integrity, and preservation of fiber wing membranes and skin, shell and its papillary structure is also well preserved." Researcher Wang Xiaolin told reporters. Conditions for the preservation of the fossil skeleton, the scientist is "beautiful" word to describe. Through a microscope, the reporter expression was observed more clearly. Smooth boundary eggs, the eggs are brown, darker in color, with sallow clear distinction between the surrounding rock. "There is no doubt belongs to pterosaur embryo, because the preservation of the skeleton showed a considerable length of 4 fingers and a well-developed triangular ridge of the humerus." Wang Xiaolin said, "In addition, in many regions, the size of a regular saving close to almost equal circular structure of the papillary ornamentation, which is direct evidence of eggshell and embryo. " Surprisingly, in the side of pterosaur fossil embryos, there is actually a fish fossil. "In nature, a species found in the fossil embryos, it is not easy, but this discovery is particularly important, it is not a common species, but the first one into the sky, is the only vertebrate extinction of three flying wing embryos for the first time that the dragon. "Wang Xiaolin said. However, it is more "legendary" and does not stop them, one side of the pterosaur fossil embryos, there is actually a fish --- and pterosaurs living in the same era fossil Lycoptera the two exist side by side, very rare. Such a "perfect match" who inspired the fossil imagination is shocking. Body fossils of two small but very fine preservation, fish bones and scales intact. Two types of animals at the same time as volcanic eruptions lead to death "the end" when the story seems fresh. Birds have long wings and body of the flight feathers, very effective insulation, bat wing membrane although no feathers on the wings to fly but play an important role for the support of three phalanges. Pterosaur wing membrane in addition to the distribution of fibers, there is no bone support, therefore, the traditional view that pterosaurs did not like the birds, free, long-distance flying in the sky, only the living environment in its vicinity such as beach, lake, rock or glide in the woods or on the water circled. However, the latest CT scan on pterosaurs, and shoulder strap and other brain research shows that pterosaurs did not just able to glide for short distances, and are likely to have a strong ability to fly. So far, the world has discovered more than 120 named species of pterosaur fossils. Pterosaur body size and shape are very different, and the larger 70 as the 20th century, discovered in Texas pterodactyl fossils, and its wings expand about 16 meters, the width of the F-16 fighter has more than about 1.5 m and a are shaped like a sparrow. Pterosaurs have two categories, long beak early the relatively primitive, living mainly in the Jurassic, there is a very long tail; late pterodactyl principal lived in the Cretaceous, the tail is very short or even disappear. In addition, the city found the body in the Neimengguning coverage "feathers" Rehe Pterosaur complete skeleton, further evidence of pterosaurs as warm-blooded animals. Recently in Brazil, a huge sea-skimming pterosaur's head crest-like structure capable of regulating body temperature found in the blood vessels of the prints, but also direct evidence of pterosaurs as warm-blooded animals. Another evidence of pterosaur bones from some like birds regulate body temperature with a small balloon. In fact, the pterosaur flight in order to meet the needs of heat and temperature has been constant with the physiological mechanism, higher metabolism and nervous system development and efficient circulatory and respiratory systems, as a class most like crawling reptiles animals. Pterosaurs are close relatives of dinosaurs living in the same era, is the blue sky flying reptiles, are sometimes mistaken for "flying dinosaurs." Pterosaurs originated about 215 million years ago, the Late Triassic extinction 500 million years ago, on 6 end of the Cretaceous. When dinosaurs dominated the land with, the pterosaurs control the sky. Pterosaurs is a very special class of reptiles, with unique structural characteristics of bone. Back in 1784, Italy in the German paleontologist Coligny first pterosaur fossil found, even not sure which category it belongs to animals, some people think it lives in the ocean, some people think it is the birds and bats transitional type and so on. Until 1801, Cuvier was identified as a pterodactyl it, attributed to reptiles. Pterosaurs are not as free as bird, flying long distances in the sky, only the living environment in its vicinity, such as beach, lake, rock or glide in the woods, sometimes circling the water also. Pterosaurs earlier than birds into the sky about 7 OOO years, began around the late Triassic to adapt to the air live, success on earth 1.5 billion years of existence. In order to meet the needs of flying pterosaurs, birds with many similar skeletal features, such as the skull porous, lightweight hollow bones, sternum and keel over, and so unexpected. So far, the world has discovered more than 120 named species of pterosaur fossils. Pterosaur body size and shape are very different, and the larger above 70 years of a century in the United States, Texas, pterodactyl fossil found in its wings expand about 16 meters, the width of the equivalent of F-16 fighter jets, while the small form sparrow. Pterosaurs have two categories, long beak early the relatively primitive, mainly living in the Jurassic, there is a very long tail; late pterodactyl principal lived in the Cretaceous, the tail is very short or even disappear. Pterosaurs are reptiles, but it is likely to be warm-blooded animals. 20 century, the British paleontologists had speculated that the ability of pterosaurs with fast motion, like bats, hairy body, and have similar living habits of birds, is a constant body temperature of warm-blooded animals. Was found in Germany beak fossil, found Mao's prints. In 1970, in Kazakhstan found a relatively complete with "feathers" pterosaur fossils, the British paleontologist hairs by these specimens and the wing of the membrane structure, that it no doubt belongs to warm-blooded animals. Pterosaur body of these "gross" thermal insulation to prevent body heat loss, with the role of regulating body temperature. Another evidence comes from the pterosaur bones, like birds they have some small balloon used to regulate body temperature. Recently, western Liaoning Province in China with "feathers" Rehe pterosaur found further evidence of at least some small pterosaurs as warm-blooded animals. More and more fossil evidence that some pterosaur flight in order to meet the needs of heat and temperature has been constant with the physiological mechanism, higher metabolism and nervous system development and efficient circulatory and respiratory systems, as a class Unlike most reptiles reptiles. Flourished in the Mesozoic Jurassic (208 million years ago to 144 million years ago) and Cretaceous (144 million years ago to 6,640 million years ago) members flying reptiles. Pterosaur head (Pterosauria) Cologne is subclass of reptiles (Archosauria). Dinosaurs and crocodiles also belong to class subclass Cologne, Cologne birds are descendants of the class. Triassic (245 million years ago to 208 million years ago) tend to two-legged gait Cologne class, so forelimbs free for other applications. Both birds and pterosaurs as the forelimbs into wings. Pterosaur wing formed by the film, like the bats rather than birds. In addition to the bat thumb, supported by other phalanx film. However, the membrane is only attached to the pterosaur, a slender means tilting (4th finger) on the back along the side of the body extends to the knee; in the neck with the "arm" attached between the coating. Phalanx to the previous three slender hook-like claws. The film appears to have fully adapted to fly and glide, but not as good as the bat wing membrane or birds flexible and more vulnerable. Well built, after the leg is thin, its structure shows that the vertical movement or not suited to stop, rest, hanging by the hind legs. Seems to hold the neck upright when in flight, and even at right angles to the head and move forward. Skull light and strong, most of the bones together; a slender mouth; eyes as large as many birds as the eye by a series of bony plates in their walls (scleral ring) by the reinforcement. Great minds obviously be compared with the bird. This class is the dominant visual sense rather than sense of smell. Most of the fossils found in marine sediments, is likely to fishing by diving for food-stuffs. But it is difficult to understand how to fly backward off from the ground or water. There are two main categories known pterosaur. Although there are early type of the Late Triassic, but in the Late Jurassic Solnhofen (Solenhofen) slate in the long beak is (Rhamphorhynchus) is more typical of the original. The features include a sharp change of such a large sharp teeth, a shorter (the bone supporting finger) metacarpal, a diamond tip tail. Wingspan of about 1 meter (3.3 feet). The second largest category of pterosaurs appeared a Late Jurassic, continued into the Cretaceous, Jurassic typically refers to the dragon is a type of wing (Pterodactylus), many specimens were found in Solnhofen slate. Dragon wing means (pterodactyl) is generally small reptiles, some as small specimens and sparrows, features include small teeth, long metacarpals, short tail. Refers to the descendants of the dragon-type wing extended to the Cretaceous period, usually larger. Represented the best in the Kansas chalk layer is Pteranodon (Pteranodon). Pteranodon is a large ratio of albatross with a wingspan of 7 meters or more. In 1975, the Texas Big Bend (Big Bend) National Park of the Late Cretaceous non-marine strata, we found three very large part of pterosaur bones, the largest wingspan of about 15.5 male specimen feet (51 feet), making it the largest flying animals seen and heard. The anatomical and fossil reptiles found at the terrain that is the flesh of their diets rather than the fish. No more than the Cretaceous pterosaur fossils, which in nature is the real status of birds replaced. According to the U.S. life sciences Web site reported recently, scientists first discovered the ancient pterosaurs landing of the "prehistoric runway." Scientists lagoon in southwestern France ancient deposits of limestone texture clear pterosaur found traces of take-off landing, the archaeological sites known as the "pterosaur Beach" and its history can be traced back to the late Jurassic period 140 million years ago . The pterosaur tracks imply its wingspan can reach 3 feet wide, in the landing process will stop beating, and then the claws on the front wing with landing. Landing, they will appear short "not smooth pace", perhaps jump landing feet and front paws landing in cooperation with the entire process to complete. Eventually adjust the posture with the limbs and stable landing down. California State University paleontologist Kevin Beckley Campus - Pa Dian (Kevin Padian), said: "Before there is no other path to describe the ancient pterosaurs to take off or landing process." Work of the Institute of Vertebrate Paleontology at the Chinese Academy of Sciences paleontologist David - Honeywell (David Hone) that looks very much like birds, pterosaurs, which are an animal body is very light, and those weighing 50 tons compared to large dinosaurs, they will not leave too much to take off landing traces. Horney stressed that if the pterosaur tracks are very well preserved, it is likely to be a soft landing in the mud or sand, but in this environment is very little chance of landing, so this latest study found very valuable rare The study also has a very strong persuasive! Pa Dian said that pterosaurs during the flight in fact, have the ability to coordinate control of their wings, future research will be expected to reveal the trajectory in the pace of take-off, further analysis of these extinct species, how was the flight. It is reported that at this point there are hundreds of archaeological sites, traces of footprints. Scientists have discovered pterosaur take off landing "prehistoric Runway" The pace of landing traces of pterosaur