Fish and dragons. Refers to medium scale aquarium.
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No. 3
Acrobats and juggling in an ancient energy change for the fish and dragon, lynx model. The 100 also plays circus name.
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No. 4
Ancient reptiles were. Shape like a fish, was born in Ocean. Paddle-like limbs, suitable for swimming. Eyes large. Mouth long, sharp teeth, meat. Ovoviviparous. The most prosperous in the Jurassic.
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No. 5
Ichthyosaur (Latin scientific name: ichthyosauria, from the Greek ιχθυς, "fish" and σαυρος "lizard") is a similar large fish and dolphins marine reptiles. They live in most of the Mesozoic period, first appeared in about 2.5 million years ago, slightly earlier than dinosaurs (230 million years ago), about 90 million years ago, they disappeared earlier than the extinction of dinosaurs about 2,500 years. Today in the mid-Triassic terrestrial reptiles not sure gradually returned to the ocean of life, evolution of the fish and dragons, a process similar to today's evolution of dolphins and whales. In particular, they are widely distributed in the Jurassic. They are the highest in the Cretaceous aquatic predators are plesiosaur replaced. Categories Domain: eukaryotic domain (eukaryota) Sector: the animal kingdom (animalia) Door: Chordata door (chordata) Amon: Amon vertebrates (vertebrata) Class: Reptilia (reptilia) Subclass: wide Kong Yagang (euryapsida) Head: Dragon Fish Head (ichthyopterygia) Head: Fish Lombok (ichthyosauria) Scientific name ichthyosauria blainville, 1835 Section Fish Song Jin Long Branch (utatsusauridae) Fish Long Branch (ichthyosauridae) Snake mouth fish Long Branch (leptonectidae) Mixed Fish Long Branch (mixosauridae) Big Eye Fish Long Branch (ophthalmosauridae) Sa Site Fish Long Branch (shastasauridae) Narrow pterosaurs (stenopterygiidae) (Teretocnemidae) Directory 1 Form Discovery of 2 3 evolution 4 Popular Culture 5 References 6 External links Form Fish and dragons in general 2 to 4 meters (although some smaller species, some species longer than 4 meters). Dolphins head it has a long, toothed kiss. Ichthyosaur long, pointed mouth, upper and lower teeth with long cone, the whole of the skull looks like a triangle. Tuna as it is today for fast swimming body, vertebrae, such as dish, slightly concave on both sides, a spine like a bunch of dishes is strung on a rope, caudal strip of the flat. . Long looked for some fish dive, head on both sides of a pair of large, round eyes, the eyes up to 30 cm in diameter, and the present knowledge, the largest of living vertebrate eye is the blue whale's eyes, diameter of only 15 cm. Therefore, fish and dragons in the dim light at night or in the hunt for deep-sea squid, fish and other prey. Some scientists estimate that the fish can dive into the sea dragon at 500 meters (sp Valley Liang Kai, 2000). Dragon fish swimming speed is estimated to reach 40 km per hour. Today's cetaceans as they breathe the air and Vivipary (some contain adult baby ichthyosaur fossils). Although fish and dragons are reptiles, the ancestors of eggs, but fish and dragons in itself is not surprising Vivipary. All air-breathing marine animals is not going to shore to lay eggs (such as sea turtles and some sea snakes), is directly and litter in the water (such as dolphins and whales.) As long streamlined body of fish is unlikely to be able to climb up on the shore they lay eggs. According to estimates of algal Valley Leung Kai 2.4 m long narrow a pterosaur weight between 163-168 kg, and a 4-meter-long dragon fish, big eyes (ophthalmosaurus icenicus) of the weight between 930-950 kg. Although ichthyosaurs looked like fish, but they are not fish.史蒂芬杰古尔德 said ichthyosaur was his favorite example of convergent evolution. A similar structure here is similar to but different sources. He pointed out: "(Fish Dragon) and the convergence of the fish is so strong that they evolved in the same place the evolution of the dorsal and caudal fins have the same hydrodynamic design. Because these structures have not evolved, so they are particularly significant. Terrestrial reptile ancestors back no plates, no film tail as (these structures), formerly. " In fact the dragon was originally thought that there is no dorsal fin fish, because there are no dorsal fin fish dragon bone tissue, until the 1890s in Germany Holtz Madeng unearthed in remarkably good fish fossil shows traces of its dorsal fin. Save the environment allows the special local traces of soft tissue left behind. Fin fish and dragon-like limbs, they may be used to play the role of stability and steering, not to accelerate, acceleration may be mainly from the shark-like tail. The tail fin divided into two leaves, which are lower lobe caudal support. Apart from the obvious draw a parallel with the fish outside the fish and dragons and dolphins have similar evolutionary signs. Appearance of two similar animals, which may indicate that their activities are similar, and perhaps they generally occupy a similar niche. Many fish-shaped ichthyosaurs are the main food of ancient squid daisy Danya Gang cephalopods, the next of kin. Some early ichthyosaurs had teeth to shellfish. They may be the staple food of fish. Some large species have a strong jaw and teeth, indicating that they also eat small reptiles. As the size of the dragon fish vary widely, but survived such a long time, so they are likely to have a very broad diet. Typical ichthyosaurs have very large, protected by the cornea of the eye ring, it seems that they mainly hunt at night. Long before the fins of fish The earliest ichthyosaurs are the hands and feet, or called flippers. Paleontologists have a wide variety of call this, in the past decade, the gradual formation of a habit that is called before the front of a pair of fins, the latter called after a pair of fins. Long may the fish swimming with fins before manipulation, as the existing fish and cetaceans (dolphins and whales.) Some paleontologists speculated that the dragon is of course the fish with their hands and feet to promote body. However, it seems their shoulders, arms are not as robust as the vertebrates. Hand, foot bones in the evolution of the dragon fish has undergone tremendous changes, from the tree of the above system can be clearly observed in the dragon's hand forward fins of fish evolution: (1) become more and more under the forearm short; (2) phalanx has become increasingly shorter, and finally into a disc shape; (3) the number of phalanges in the early days of the evolution of increase; (4) thumbs disappeared and the remaining phalangeal joints next to the emergence of new (light blue). The main food fish and dragons Based on the limited fossil remains in the stomach of fish material, you can analyze what they eat fish and dragons. As early as 1853, coles fish fossils found within the range of some special things (below), then that is the scales. But later, the scientists found that, in fact, these are the small tentacles from squid hook structure (extinct cephalopods, most of belemnite). Since then, more information, fish-shaped ichthyosaurs, mainly feed on cuttlefish. Even up to 10 meters Twyman Jurassic ichthyosaurs (temnodontosaurus) is no exception, although they occasionally eat large invertebrates. In addition to squid, fish and dragons also eat fish and other marine animals. Simply put, many fish-shaped ichthyosaurs is squid predators, like now, like whales. Dragon fish breeding Dragon fish, dragon fish specimens not only prove live birth to a baby, but also further confirmed the same as whales and dolphins, fish, Mr. Long is also out of the tail. However, it is important to note, "Save the ongoing production of" the individual at death may not be in production. Instead, they most likely died during pregnancy, only later in the decay process, the baby was the mother of the gas generated within the body pushed to the outside of the birth canal. This "after the death of production" in today's whale onto the beach is very common. Baby head first place rather than the end of the first digital preservation of the specimens showed that fish and dragons sometimes occurs during childbirth. Such as whales and dolphins around the same class until the head came out from the mother's cloaca, the dragon fish was only "trigger" for the first time breathing. Therefore, if the baby head first out, then it is highly likely to be drowned. In 1995, Charles. Diming (d.charles deeming), PhD, and colleagues studied the ichthyosaur embryos that, if this happens, the mother will die, because death of the baby was left in the cloaca, the mother will be activities blocked. The long decay of the baby will make her blood poisoning. Maybe sometimes the baby head first position can indeed survive, because in the first production of dolphins in the success of the first record. Another problem may also occur is that too many babies of non-normal production. Live births is a very high pressure and the risk of the process of breathing air for aquatic animals is particularly true Diming and colleagues also noted that more than one child could lead to fish and dragons, Aberdeen, Mother died. Discovery history The earliest description of fish and dragons in Wales in 1699 found that the fossil fragments. The earliest fossils of the spine in 1708 was published twice, suspected to be the remains of the flood. 1811 Mary Anning today known as the Jurassic Coast Lyme Regis discovered the first complete ichthyosaur. Since then she have been found with three different fossils. University of California in 1905 in the Triassic dinosaur expedition is found in shallow sea in Nevada 25 fossils. Some of these fossils on display today at the Archaeological Museum of the University of California. Other fossils are still buried in the stone bed today, you can in Nye County, Berlin ichthyosaur state park to be visited. Nevada 1977, Lonza will Triassic fish nylon (shonisaurus) as the state fossil. Nevada is the only one with a full, 17-meter-long dragon State Sani. In 1992 scientists discovered a Canadian fish the biggest fish to date fossils, it is 23 meters long. Evolution Looks more like the early fin fish and dragon lizard, instead of fish or dolphins. In Canada, China, Japan and Norway Bergen Adams Pittsburgh in the early and early Triassic layers are found the fossils. These early species, including lake dragon (chaohusaurus), short-tailed fish and dragons (grippia) and Song-chun, fish and dragons (utatsusaurus). These are the fish dragon head, but not fish, Lombok (sp Valley Liang Kai, 1997; algae such as Google Liang Kai, 1998) in the early Late Triassic ichthyosaurs in the early or mid-morning fish evolved into a real dragon. Long quickly differentiate these fish for many species, including sea snakes, like, a 10-meter-long ichthyosaur vertebra Cup (cymbospondylus), and the smaller, more typical mix of fish species such as the Dragon (mixosaurus). Late Triassic ichthyosaurs, including relatively old Sa Site Long Branch and more like the dolphin fish, the California Fish and Dragon (californosaurus) and so on. Experts are now inconsistent with these fish and dragons are also shown in the process of evolution, which is less Sa Site ichthyosaurs and lineage specificity of, and gradually evolved into more advanced types (maisch and matzke, 2000 years), or they are evolved from a common ancestor of two parallel types (nicholls and manabe, 2001 years). In order Sa Site Karnik order and Nuo Like animals, fish and dragons subjects to a lot of length. Karnik, Nevada, found a number of stratigraphic order with fossil shonisaurus popularis to 15 meters long. Karnik on both sides of the Pacific fish of order Sa Site Long Branch animal was found. Found in the Tibetan Himalayas and Tibet, fish and dragons (himalayasaurus tibetensis). These 10 to 15 meters-long dragon fish, dragon may Sani belong to the same genus (such as algae Valley Liang Kai, 1999; lucas, 2001, the 117-119). Was found in British Columbia shonisaurus sikanniensis reached 21 meters in length, which is by far the largest marine reptiles. Nuo Like the end of these huge animals, order (and its smaller cousin) seem to disappear. Ruiti order in the UK have long been found in fish, they are the early Jurassic ichthyosaur with very similar. Ichthyosaurs and dinosaurs and plesiosaurs survived the same period in the late Triassic extinction event, and once in the early Jurassic diversification of the niche to fill vacancies. 海因里希哈尔德 painted dragon fish As early as the late Triassic, Jurassic is the peak of the dragon fish, dragon fish at the time, and many species of four families, the length ranging from 1-10 meters. The nose is long, including real (eurhinosaurus), fish and dragons are (ichthyosaurus), leptonectes, narrow pterosaur (stenopterygius) and large predatory fish and dragon fish dragon Twyman (temnodontosaurus), also have to leave early, more primitive suevoleviathan They compared changes in their Nuo Like the ancestors of relatively small order. All of these animals are like dolphins, streamlined body. However, the animal may be more primitive than the later developed type of pterosaur, such as narrow or fish some of the dragon is more slender. Still in the mid-Jurassic ichthyosaurs, but the diversity is reduced. Representative of the fish this time four-meter-long dragon big eyes ichthyosaurs (ophthalmosaurus) and in the vicinity are, they are like fish and dragon, with a perfect "drop type" streamlined body. Big eyes the eyes of the dragon fish is very large, these animals may be relatively light in the dark, deep-water hunting (sp Valley Liang Kai, 2000). The diversity in the Cretaceous ichthyosaurs seems to decline. Cretaceous ichthyosaurs so far only one case was found: bian Zhu ichthyosaur genus (platypterygius), although it is widely distributed around the world, but very few of its kind. In the mid-Cretaceous extinction event in these ichthyosaurs disappeared. It is interesting that relatively poor hydrodynamic performance animals such as mosasaurs and plesiosaurs survived, and very lush. Long may the fish become professional victims. They can not very high-speed teleost fish to compete with class. Cang Long's wait for the surprise of strategies to deal with teleost fishes are more effective class (lingham-soliar, 1999 years). Pop Culture In Jules Verne's "geocentric" Travels in a match for fish and dragons and the plesiosaur description In the video game Half-Life in an underwater alien animals known as dragon fish Mesozoic marine life had been extinct in the fish-shaped reptiles, classified in the transfer Kong Yagang Reptilia. 1821, Koenig that they are between fish and reptiles among the animals, the creation of fish and dragons (ichthyo-saurus) the word. Cuvier had had more fish and dragon image description: "The fish has a dolphin kiss the dragon, crocodile teeth, lizard's head and chest, limbs, like whales, fish-shaped spine." Indicate that they are a class of old reptiles. 1835, h.-mdde Long Branch Virginia to fish as a separate Programme (ichthyosauria), included in the vertebrate subphylum. Four years later, the famous British scientist Richard Owen of Vertebrate Paleontology and fin fish, dragons dragons merged, as a class, said enaliasauria, including two projects: the fish head in Lombok, and the plesiosaur. With the increase of fossil fish, fish systematic position of the dragon also continue to be re-understanding. In 1956, as Romer them as a separate project, attributed to the Hole (parapsida), 1968, the Roche Research on the Late Cretaceous of North America a complete ichthyosaur skull structure. He stressed the fish classified Dragon Hole. The origin of the dragon fish, is still a lack of reliable clues to the earliest known fossils of the late Early Triassic, already highly specialized. Ancestors so they should appear in the Triassic ago. Suggested by the morphological structure, fish and dragons dragons might originate in the cup. Ichthyosaurs body structure that they completely lost the ability to land on. Dragon mode of reproduction of fish, now considered to be ovoviviparous more. This inference Württemberg, Germany fish fossils unearthed to prove. Fish in the well-preserved skeleton of the abdominal part of the dragon, in addition to identify some of their prey, such as cephalopods, fish, there are dragon fish larvae, some of which have fallen outside of the cloaca. Classification of the dragon fish, than the current consensus is constructed based on limb bones connection between fins divided into two categories, broad enough and narrow enough class class, which is divided into five sections. Mixed fish ① Long Branch mixosauridae, ② short head fish Long Branch om-phalosauridae, ③ Sa Site Fish Long Branch shastasauridae, ④ fish Long Branch ichthyosauridae, ⑤ block finfish Long Branch stenopterygiidae. The first three families mainly live in the Triassic, are some of the more primitive fish, dragons, the general individual smaller form than the original. The latter two subjects including some progressive Jurassic and Cretaceous ichthyosaurs. Fish fossils found in China and studies later, the first ichthyosaur was named in 1964, Yang Zhongjian Maotai mixed ichthyosaurs (mixosaurus mao-taiensis). Shisha 1964 peak of scientific investigation in Tingri in Tibet fish fossils discovered in 1966, a scientific expedition in the Everest region Nyalam Tu Long area of the fish collected from a large dragon, was named Tibet Himalayan ichthyosaur (himalayesaurus tibetensis), 1965, Anhui nest early Triassic strata in the county, a small lake fish and dragon ─ ─ Turtle Dragon (chaohusaurus guishanensis) is the world's earliest known genus. Dragon fish as marine animals, their distribution is worldwide. Appeared from the late Triassic to Early Cretaceous extinction, has been in a class of marine animals live very successful. In the end they Mesozoic dinosaurs, pterosaurs and other people to extinction. One. Ancient fish in the sea dragons It was discovered that dated to 230 million years ago, ancient sea, they begin to have a dragon fish. Maotai in the rich wine region in China Guizhou Maotai to this primitive fish found in the dragon - the dragon mixed fish. It is the first long, short neck, the body of dolphins as they are now. Their limbs have become good at swimming fins. Dragon fish are fish in the sea, mussels or other invertebrates in the. Mixed fish and dragon fish dragon is the smallest family of a class, less than 1 meter in length, the longest and only 2 meters. At that time the ancient ocean, there is a reptile, called to the dragon. This is very inappropriate name is from the early paleontologists, and means "land of the lizard." Some people called them "marine crocodile." You may already know it from the looks on these nicknames would look like modern crocodiles of the bar. But in addition to its crocodile-like body, but it is already four feet into a paddle-like fins, coupled with that big tail, it can swim freely in the water to go. The reptiles are also water and color, like the dragon, in addition to laying on the shore, in general, are living life in the ocean. The sea was also a class of short-lived fish, dragon head, its head is short and thick, like a mouth with long rows of button-like teeth, turns out it is a living mollusk living in the sea eating fish dragon. It is with that button-like teeth, "click it" suddenly crushed mollusk shell, the inside flesh of a fresh gargling stomach. Although small fish leading short head, but head is not small, its limbs than other contemporary ichthyosaurs have much longer. Some short head fish and dragons can grow to 10 to 14 meters, compared with mixed fish and dragons to it, but "big guy" was. II. Ichthyosaur fossils found in record One story, a farmer at the ranch to see some of the rocks like a huge animal footprints things, he immediately hired the a scientist. The scientists looked for a moment on the farmers, this is a big guy, this is definitely prehistoric animals, with two large hind legs to walk. Its webbed feet like ducks. Later learned that it is a duck-billed dinosaur. Scientists also found that the big guys can easily ooze through, perhaps, this place was once the beach, because the footprint is a small sand crabs near the fossils. Another time, a New England farmer also found some strange footprints impression, the impression has been petrified. But still no one heard of dinosaurs, so I can not give them big and strange footprints from the name. Later, after a few years later, the first dinosaur skeleton was discovered later, people moved these strange footprints and dinosaur together. Mary found this fossil is? When scientists are given in Latin or Greek to name animals and plants. Therefore, the fossil is no exception, since it had a "ichth-ysaurus" name, "ichthys" in the Greek for "fish" mean, and "saurus" is Greek for "lizard." So early paleontologists to translate it into "fish lizard." Later he translated ichthyosaurs. Mary therefore well known. She was so excited, determined to rediscover some important fossils, after years of efforts, she really has found another in the sky flying reptiles - pterosaurs fossils. She is a great discoverer of fossils. If now, she definitely could get a Nobel Prize. In time, his wife and a British woman in the rock Mantell found some particularly large teeth. They think like a sinking teeth teeth called as iguanas. They only reptiles from the ancient times had a name Iguanodon. Later, they discovered many fossils of Iguanodon. When a complete Iguanodon skeletons were excavated, they discovered that in addition to their teeth, compared with the original Iguanodon only ever look like iguanas completely different. As more and more huge reptiles were found, a scientist that it was important to all these big monsters a name. He decided to use dinosaurs to collectively they are, which means "terrible lizard." Paleontologists in China it translated dragon. III. Ichthyosaur "cemetery" in the new discovery Fish Dragon "cemetery" in all adult female fish found in the body cavity of the dragon dragon almost all fish. Even in a narrow cleft called four fins abdominal dragon found in the female dragon fish dragon 4. 3 of them in the body cavity, one was about to born. Its body in vitro, but in the mother's face head stomach. The role of the petrochemical nature of the reproductive condition of fish dragon faithfully recorded, through the study of these samples, scientists found that when fish are not born in the dragon to leave the mother's body quickly, in childbirth, fish dragon First, the tail gradually extended by the parent, but not out of the whole body, until the fish has been deliberately used the dragon tail and fins when the foot up. Dragon fish born soon head higher, a 3-meter-long dragon female children born up to 0.5 to 0.7 meters. In 1988, the Swiss Alps, a paleontologist at the many fossils found. 200 million years ago, there was still a warm sea, looks a bit like the magic dragon dolphins are free to travel. Now, many people speculated that the fish in the sea like dragons and other animals, reptiles may not like a "ovoviviparous" animals, this feature was very progressive in it. The earliest fossils of fish in the 18th century (1708) found in Zurich, Switzerland area, only two pieces of the spine. At that time, scientists do not yet know. Hundred years later (1814), a 12-year-old British girl Mary Anning found in the English seaside cliff a complete ichthyosaur before being recognized scholars. China except Tibet, also in Anhui, Guizhou ichthyosaur discovered. Anhui primitive ichthyosaur, an earlier era, the Early Triassic, dating back some 200 million 2 million years ago. It found that the Middle Triassic ichthyosaurs record 1 thousand million years to move forward. In addition to fish, aquatic reptiles, the dragon, the country also found plesiosaur, the long, Guizhou dragons. Himalayan fish and dragons (himalayesaurus tibetensis), more than 10 meters in length and weighs about 3 tons. There are thick mouth like flat conical teeth. The triangular skull, eyes big and round. Vertebral spine like a plate, slightly concave on both sides, the spine like a string tied to the rope on the plate. Its limbs flat, shoulder blades are long, which are conducive to swimming. Spindle-shaped body, paddle-like limbs and a strong tail, making it unmatched in the sea of ancient Himalayan quick swim home. Sa Site Fish Long Branch is in the late Triassic ichthyosaurs the most widely distributed classes, won a lot of vastly different species, from a few meters to ten meters long monster has. Sa Site ichthyosaur (shastasaurus) is a typical representative of this Section, the teeth are slot wild type, no back fin, tail fin and no half-moon, so it may still swinging like the eel-like body forward. In the last thousand years Lisasite Triassic ichthyosaurs evolved rapidly from the ordinary living sea monster appalling, they are big and strong, and their living land animal in the same period - a variety of archosaurs, and just the stage of history of dinosaurs, fish and dragons and Sa Site simply pale into insignificance compared. Shawnee fish and dragons (shonisaurus) also appear in the late Triassic ichthyosaurs the American giant, and its body up to 15 meters, the most special is that they are four fins very large, and almost equal length; In addition they also have a fat belly, reptiles such a big belly to what use I 搞不太清楚. Many in the picture will be painted on the half-moon Shawnee dragon tail, but look at their caudal vertebrae from fossil is not very curved, up to a "tail" work. Shawnee has long been found in fish and dragons are the largest marine reptiles, but the record was broken recently - Canada found a 23 meters-long ichthyosaur Sa Site! Pinker then even bigger mountain dragon fish was discovered that the dragon is the largest fish species.
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Book knowledge
Fish, the dragon is the most understanding of the marine reptiles. It is very similar body size and dolphins, with fin-like structure and streamlined head, is very suitable for swimming. Dragon fish swimming speed is amazing, relying on each other at right angles to it that the tail wheel sheet, up to 40 kilometers per hour. Long narrow and the fish snout length, mouth length of a sharp small teeth to seize the slippery squid or other animals.
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Encyclopedia
yulong Ichthyosaur Ichthyosaurus Mesozoic marine life had been extinct in the fish-shaped reptiles, classified in the transfer Kong Yagang Reptilia. 1821, Koenig that they are between fish and reptiles among the animals, the creation of fish and dragons (Ichthyo-saurus) the word. Cuvier had had more fish and dragon image description: "The fish has a dolphin kiss the dragon, crocodile teeth, lizard's head and chest, limbs, like whales, fish-shaped spine." Indicate that they are a class of old reptiles. 1835, H.-MDde Long Branch Virginia to fish as a separate Programme (Ichthyosauria), included in the vertebrate subphylum. Four years later, the famous British scientist R. Owen of Vertebrate Paleontology and fin fish, dragons dragons merged, as a class, said Enaliasauria, including two projects: the fish head in Lombok, and the plesiosaur. With the increase of fossil fish, fish systematic position of the dragon also continue to be re-understanding. 1956, AS Romer them as a separate project, attributed to the Hole (Parapsida), 1968, the Roche Research on the Late Cretaceous of North America a complete ichthyosaur skull structure. He stressed the fish classified Dragon Hole. The origin of the dragon fish, is still a lack of reliable clues to the earliest known fossils of the late Early Triassic, already highly specialized. Ancestors so they should appear in the Triassic ago. Suggested by the morphological structure, fish and dragons dragons might originate in the cup. Ichthyosaurs body structure that they completely lost the ability to land on. Dragon mode of reproduction of fish, now considered to be ovoviviparous more. This inference Württemberg, Germany fish fossils unearthed to prove. Fish in the well-preserved skeleton of the abdominal part of the dragon, in addition to identify some of their prey, such as cephalopods, fish, there are dragon fish larvae, some of which have fallen outside of the cloaca. Classification of the dragon fish, than the current consensus is constructed based on limb bones connection between fins divided into two categories, broad enough and narrow enough class class, which is divided into five sections. Mixed fish ① Long Branch Mixosauridae, ② short head fish Long Branch Om-phalosauridae, ③ Sa Site Fish Long Branch Shastasauridae, ④ fish Long Branch Ichthyosauridae, ⑤ block finfish Long Branch Stenopterygiidae. The first three families mainly live in the Triassic, are some of the more primitive fish, dragons, the general individual smaller form than the original. The latter two subjects including some progressive Jurassic and Cretaceous ichthyosaurs. Chinese fish fossil find and studies later, the first ichthyosaur was named in 1964, Yang Zhongjian Maotai mixed ichthyosaurs (Mixosaurus mao-taiensis). Shisha 1964 peak of scientific investigation in Tingri in Tibet fish fossils discovered in 1966, a scientific expedition in the Everest region Nyalam Tu Long area of the fish collected a large dragon, was named Tibet Himalayan ichthyosaur (Himalayesaurus tibetensis), 1965, Anhui nest early Triassic strata in the county, a small lake fish and dragon ─ ─ Turtle Dragon (Chaohusaurus guishanensis) is the world's earliest known genus. Dragon fish as marine animals, their distribution is worldwide. Appeared from the late Triassic to Early Cretaceous extinction, has been in a class of marine animals live very successful. In the end they Mesozoic dinosaurs, pterosaurs and other people to extinction. (Dong Zhiming)