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Prehistoria (635)

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! EN_90250754_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Cave painting of a horse and a hind. Artwork of a cave painting found on the roof of the Altamira Cave in northern Spain, which was inhabited during the the Upper Palaeolithic period (the final period of the Old Stone Age). It is thought that the cave was inhabited during two periods, one 18,500 years ago, and another around 15,000 years ago. The painting, which depicts a horse and a hind (female deer), dates from the latter period. It is over 60 centimetres long, and was made using materials such as charcoal, ochre and haematite. The cave was discovered in 1879. Artwork from the 1913 edition of Prehistoric Times (Sir John Lubbock).
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! EN_90269887_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Neanderthal skull parts. Artwork of parts of a Neanderthal skull, found in 1856 in a limestone quarry in the Neandertal area of Germany, after which the Neanderthals are named. A side view is shown at upper left. A frontal view is at upper right. Below them is a view from above. The skull is large, enclosing a brain similar in size to that of modern humans. The brain case and face are long, the forehead is low with protruding brow ridges. Artwork from the 1913 edition of Prehistoric Times (Sir John Lubbock).
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! EN_90275963_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Rock engraving of reindeer. Artwork of a prehistoric engraving found on a piece of schist rock. It is thought to be from the Abri de Laugerie Bas, a rock shelter on the right bank of the river Vezere, France. This area was occupied by the Magdalenian people who lived there from 11,000 to 17,000 years ago during the Upper Paleolithic Period, also known as the Reindeer period. Reindeer, wild horses and bison were in plentiful supply. The ample supply of food allowed the development of high-quality art. Artwork from The Origin of Civilisation and the Primitive Condition of Man (Sir John Lubbock, 1870).
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! EN_90267776_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Mapusaurus, artwork. Mapusaurus (meaning 'earth lizard') was a bipedal carnivorous therapod dinosaur that lived around 100 million years ago. Several Mapusaurus fossils have been discovered in Argentina. When alive, an adult would have measured over 12.5 metres in length, and weighed over three tons. It is thought Mapusaurus hunted in packs.
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! EN_90269000_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Monolophosaurus, artwork. Monolophosaurus (meaning 'single-crested lizard') was a bipedal carnivorous therapod dinosaur that lived around 170 million years ago (middle Jurassic) in what is now China. When alive, an adult would have measured over 5 metres in length, and weighed roughly 700 kilograms. It had a distinctive crest on top of its skull and was thought to have lived in or around water.
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! EN_90282091_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Thylacoleo. Artwork of a pair of Thylacoleo, also known as the 'marsupial lion' or 'pouch lion'. This extinct marsupial lived between 2 million and 30,000 years ago in Australia. When alive, an adult measured about 114 centimetres from head to tail and weighed around 130 kilograms. It had extremely powerful forelimbs and jaw strength to enable it to hunt prey much larger than itself. Its front and hind paws also had unusual opposable thumbs with huge claws.
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! EN_90250890_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Ceratosaurus dinosaur. Artwork of a Ceratosaurus (Ceratosaurus nasicornis) with prey. This carnivorous theropod dinosaur lived in the Late Jurassic Period (150-135 million years ago). It was a bipedal predator, using its teeth and hind claws to bring down its prey. It had horny plates on top of its skull that may have been used in fights between males. Fossil evidence suggests Ceratosaurus may have reached up to 8 metres in length.
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! EN_90268172_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Megatherium. Artwork of a group of Megatherium (Megatherium americanum), an extinct species of giant sloth. Megatherium was about the size of an elephant, and inhabited the shrubby savannas of America. The genus evolved several million years ago, but is thought to have become extinct as recently as 12,000 years ago. Megatherium was a herbivore with huge claws and was able to stand on it's hind legs.
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! EN_90274457_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Pteranodon pterosaurs in flight, artwork. Pteranodon was a flying reptile that inhabited what is now North America and Europe during the late Cretaceous period, between 85 and 75 million years ago. It was carnivorous, and probably fed on fish, which it caught from the water in its toothless bill. Its wingspan could reach up to ten metres.
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! EN_90280342_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Stegosaurus dinosaur, artwork. Stegosaurs ('roofed reptiles') were herbivores that lived throughout the world during the Jurassic period, around 150 million years ago. They reached about 6 metres long and weighed about 1.5 tonnes. The distinctive broad plates running in two rows along their backs are thought to have helped control their body temperature by radiating or absorbing heat. Stegosaurs defended themselves with the long spikes on their tails. They had tiny brains in relation to their size.
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! EN_90282394_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Torosaurus dinosaur. Artwork of a pair of Torosaurus dinosaurs. Torosaurus ('perforated lizard') had a huge horned skull measuring 2.6 metres in length. This herbivore lived during the Late Cretaceous (70-65 million years ago) and was closely related to Triceratops.
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! EN_90258938_0003 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Formation of the Moon. Computer artwork showing the giant impact theory of the formation of the Moon. This theory says that an object about the size of Mars (upper left) collided with the Earth (lower right) around 4.6 billion years ago, soon after they both formed. The impact was side-on, rather than a direct impact. Material from the outer layers of both bodies was thrown into orbit around the Earth, forming a ring. This then coalesced to form the Moon.
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! EN_90258938_0004 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Formation of the Moon. Computer artwork showing the giant impact theory of the formation of the Moon. This theory says that an object about the size of Mars (lower right) collided with the Earth (upper left) around 4.6 billion years ago, soon after they both formed. The impact was side-on, rather than a direct impact. Material from the outer layers of both bodies was thrown into orbit around the Earth, forming a ring. This then coalesced to form the Moon.
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! EN_90283399_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Tyrannosaurus rex dinosaur skeleton, computer artwork.
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! EN_90271305_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Orthocerid hunting trilobites, artwork. Orthocerids are extinct members of the Cephalopoda class of marine animals that include squids, octopuses and nautiloids. They existed from the Early Ordovician (490 million years ago) to the Late Permian (260 million years ago). Orthocerids grew a distinctive cone-shaped shell, known as an orthocone, that ranged in size from a few centimetres long to over five metres in length.
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! EN_90250891_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Ceratosaurus dinosaur. Computer artwork of a Ceratosaurus, a carnivorous theropod dinosaur that lived in the Late Jurassic Period (150-135 million years ago). It was a bipedal predator, using its teeth and hind claws to bring down its prey. The four fingers of its forelimbs distinguish it from other theropods like Allosaurus. Its horns may have been used in fights between males.
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! EN_90256493_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Einiosaurus dinosaur, computer artwork. This horned herbivorous dinosaur is known from fossils discovered in Montana, USA. It dates from the Late Cretaceous period, 65 to 100 million years ago. This dinosaur was herbivorous, feeding on plants and other vegetation.
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! EN_90256493_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Einiosaurus dinosaur, computer artwork. This horned herbivorous dinosaur is known from fossils discovered in Montana, USA. It dates from the Late Cretaceous period, 65 to 100 million years ago. This dinosaur was herbivorous, feeding on plants and other vegetation.
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! EN_90256493_0003 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Gigantoraptor (Gigantoraptor erlianensis) pair in dense forest, artwork. Gigantoraptor was a large dinosaur that lived 85 million years ago, during the Late Cretaceous Period. It grew to a height of 8 metres and weighed 1400 kilograms. It belonged to the Oviraptoridae group of dinosaurs which had bird-like beaks and feathers. Gigantoraptor was bipedal. It had long, thin hindlimbs and shorter forelimbs with large, sharp claws, which suggested it was a fast running predator. It is thought that modern day birds evolved from feathered dinosaurs.
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! EN_90256493_0004 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Gigantoraptor (Gigantoraptor erlianensis) pair in dense forest, artwork. Gigantoraptor was a large dinosaur that lived 85 million years ago, during the Late Cretaceous Period. It grew to a height of 8 metres and weighed 1400 kilograms. It belonged to the Oviraptoridae group of dinosaurs which had bird-like beaks and feathers. Gigantoraptor was bipedal. It had long, thin hindlimbs and shorter forelimbs with large, sharp claws, which suggested it was a fast running predator. It is thought that modern day birds evolved from feathered dinosaurs.
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