what is a plesiosaur
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Plesiosaurs and Pliosaurs - The Sea Serpents (See a gallery of plesiosaur and pliosaur pictures.) Plesiosaurs (Greek for almost lizards) were large, long-necked, four-flippered marine reptiles that paddled their way through the oceans, lakes, rivers and swamps of the Jurassic and Cretaceous periods.
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Plesiosaurs and Pliosaurs - The Sea Serpents One of the earliest known plesiosaurs, Thalassiodracon, was only about six feet long; compare that to the 55-foot length of Mauisaurus, a plesiosaur of the late Cretaceous. Similarly, the early Jurassic pliosaur Rhomaleosaurus was only about 20 feet long, while the late Jurassic Liopleurodon attained lengths of 40 feet (and weighed in the neighborhood of 25 tons).
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- Dinosaurs are a diverse group of reptiles of the clade Dinosauria that first appeared during the Triassic period. Although the exact origin and timing of the evolution of dinosaurs is the subject of active research, the current scientific consensus places their origin between 231 and 243 million years ago.
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- Animal Unique. Animal Unique | Platypus | The platypus is a semi-aquatic mammal endemic to eastern Australia, including Tasmania. Together with the four species of Echidna, is one of the five extant species of monotremes, the only mammals that lay eggs instead of the birth of live pups.nimal Unique | Platypus | The platypus is a semi-aquatic mammal endemic to eastern Australia, including Tasmania.
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Something about Plesiosaurs (Elasmosaurs) This specimen represents the only plesiosaur skull remains that we have ever found in the chalk (upper Coniacian - about 86 mya). The bone fragments were scattered over a large area and are mostly unrecognizable.
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Stegosaurus Stegosaurus (/ˌstɛɡəˈsɔːrəs/) is a genus of armored dinosaur. Fossils of this genus date to the Late Jurassic period, where they are found in Kimmeridgian to early Tithonian aged strata, between 155 and 150 million years ago, in the western United States and Portugal.
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Platypus Facts The platypus is one of the most unusual creatures in the animal kingdom. Platypuses (which is the correct plural form, not platypi) have a paddle-shaped tail like a beaver; a sleek, furry body like an otter; and a flat bill and webbed feet like a duck.he platypus is one of the most unusual creatures in the animal kingdom. Platypuses (which is the correct plural form, not platypi) have a paddle-shaped tail like a beaver; a sleek, furry body like an otter; and a flat bill and webbed feet like a duck.
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Creationism and the Platypus The platypus, Ornithorhynchus anatinus is one of the most unusual of living creatures. It is a mammal which has fur and suckles its young, but it also lays eggs, has webbed feet, a bill that looks like that of a duck, and a tail resembling that of a beaver.he platypus and three species of echidna (also known as spiny anteaters) are the only living members of a group of animals called monotremes. Platypuses (or platypi) are small animals; the largest ever found was 5 lbs and just over 2 feet (610 mm) in length.
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Centaur Centaurs are half-human, half-horse creatures in Greek mythology. They have the body of a horse and the torso, head and arms of a man.They were considered to be the children of Ixion, king of the Lapiths, and Nephele, a cloud made in the image of Hera.According to a different myth, however, they were all born from the union of a single Centaurus with the Magnesian mares.hey were considered to be the children of Ixion, king of the Lapiths, and Nephele, a cloud made in the image of Hera. According to a different myth, however, they were all born from the union of a single Centaurus with the Magnesian mares.
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PLESIOSAUR / PLIOSAUR EARLY JURASSIC TO CRETACEOUS PERIOD: 220 million - 65 million years ago. Plesiosaurs were magnificent ocean-dwelling reptiles that flew gracefully through the water with massive paddles. They are often mistakenly called 'dinosaurs' but they not dinosaurs and are correctly classified as marine reptiles. They were around almost as long as the dinosaurs from the Triassic period 220 million years ago until the end of the Cretaceous 65 million years ago. Their remains have been found on every continent.
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- The platypus is one of the most unusual creatures in the animal kingdom. Platypuses (which is the correct plural form, not platypi) have a paddle-shaped tail like a beaver; a sleek, furry body like an otter; and a flat bill and webbed feet like a duck.
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Plesiosaurus About Plesiosaurus. Plesiosaurus is an extinct marine reptile which lived approximately 135 million to 120 million years ago – from the Early to the Middle Jurassic Period. It was first discovered in the winter of 1823 by fossil hunter Mary Anning in Western Europe. It was named the following year by William Conybeare.
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Placodermi Placodermi (from the Greek πλάξ = plate and δέρμα = skin, literally plate-skinned) is an extinct class of armoured prehistoric fish, known from fossils, which lived from the Silurian to the end of the Devonian Period.he first identifiable placoderms appear in the fossil record during the late Llandovery epoch of the early Silurian. The various groups of placoderms were diverse and abundant during the Devonian, but became extinct at the end-Devonian Hangenberg event 360 million years ago.
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Monotremes The Platypus (Ornithorhynchus anatinus) is a semi-aquatic mammal  endemic to eastern Australia and Tasmania.Together with the  short-beaked and long-beaked echidna, it is o … ne of the three  species of monotremes, the only mammals that lay eggs instead of  giving birth to live young.o, the platypus is completely carnivorous. It does not eat plant matter at all, but feeds on annelid worms, tiny shrimp and annelid worms that live at the bottom of freshwate … r creeks and rivers. It does not eat vegetation.
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Stegosaurus: Bony Plates & Tiny Brain Stegosaurus was the largest and most well-known member of the Stegosauridae family of armored dinosaurs. The largest species was Stegosaurus armatus, a behemoth that grew up to about 30 feet (9 meters) long. It is considered a type species, or the species that serves as the primary example of the Stegosaurus genus.
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Plesiosauria Plesiosaurs in this period were at most five metres (sixteen feet) long. By the Toarcian, about 180 million years ago, other groups, among them the Plesiosauridae, became more numerous and some species developed longer necks, resulting in total body lengths of up to ten metres (33 feet).
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- n. pl. plat·y·pus·es. A semiaquatic egg-laying mammal (Ornithorhynchus anatinus) of eastern Australia and Tasmania, having a broad flat tail, webbed feet, a snout resembling a duck's bill, and in the male, venomous spurs on the hind legs. Also called duckbill, duck-billed platypus.[New Latin. , former genus name, from Greek.lat·y·pus. n. pl. plat·y·pus·es. A semiaquatic egg-laying mammal (Ornithorhynchus anatinus) of eastern Australia and Tasmania, having a broad flat tail, webbed feet, a snout resembling a duck's bill, and in the male, venomous spurs on the hind legs. Also called duckbill, duck-billed platypus. [New Latin.
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- Plesiosaurus (Greek: πλησιος/plesios, near to+ σαυρος/sauros, lizard) is a genus of extinct... Plesiosaurus (Greek: πλησιος/plesios, near to+ σαυρος/sauros, lizard) is a genus of extinct, large marine sauropterygian reptile that lived during the early part of the Jurassic Period, and is...
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- plat·y·pus. n. pl. plat·y·pus·es. A semiaquatic egg-laying mammal (Ornithorhynchus anatinus) of eastern Australia and Tasmania, having a broad flat tail, webbed feet, a snout resembling a duck's bill, and in the male, venomous spurs on the hind legs. Also called duckbill, duck-billed platypus. [New Latin., former genus name, from Greek.lat·y·pus. n. pl. plat·y·pus·es. A semiaquatic egg-laying mammal (Ornithorhynchus anatinus) of eastern Australia and Tasmania, having a broad flat tail, webbed feet, a snout resembling a duck's bill, and in the male, venomous spurs on the hind legs. Also called duckbill, duck-billed platypus. [New Latin.
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Introduction to the Pentateuch The Pentateuch is not the only portion of the Old Testament which associates these five books with Moses (Wolf 1991:54). For example, after Moses' death, God instructed Joshua to obey all the law given by Moses and to meditate upon the Book of the Law day and night (Josh 1:7-8).
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- Physical features. 1  The Plesiosaurus was medium sized reptile. 2  The head of the Plesiosaurus was very small as compared to the rest of its body. 3  Its neck was very long and slender. 4  Both the forelimbs and hind limbs of the Plesiosaurus were modified to form paddles. 5  The Plesiosaurus had a short tail.
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- Definition of dinosaur. 1  1 : any of a group (Dinosauria) of extinct often very large chiefly terrestrial carnivorous or herbivorous reptiles of the Mesozoic era. 2  2 : any of various large extinct reptiles (such as ichthyosaurs) other than the true dinosaurs.
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Plesiosaur Peril â the lifestyles and behaviours of ancient marine reptiles Plesiosaur Peril — the lifestyles and behaviours of ancient marine reptiles. Between the later part of the Triassic and the very end of the Cretaceous, the seas of the world (and some of its rivers, lakes and estuaries as well) were inhabited by the remarkable group of swimming reptiles known as the plesiosaurs.
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- Click on a circle in the chart to view Remmers birth and death records. An unusually short lifespan might indicate that your ancestors lived in harsh conditions. A short lifespan might also indicate health problems that were once prevalent in your family.The SSDI is a searchable database of more than 70 million names.You can find birthdates, death dates, addresses and more. short lifespan might also indicate health problems that were once prevalent in your family. The SSDI is a searchable database of more than 70 million names. You can find birthdates, death dates, addresses and more.
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About the FASB 1 The FAF management is responsible for providing strategic counsel and services that support the work of the standard-setting Boards.  The FAF Trustees are responsible for providing oversight and promoting an independent and effective standard-setting process.
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Elasmosaurus By the Late Cretaceous, plesiosaurs had evolved (or been reduced) to two distinct groups. Elasmosaurus is the type genus for one of these groups, elasmosaurids which had very long necks with small heads, in contrast to the polycotylids which had short necks and large heads.