Saurischia topic
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Saurischia (, from the Greek sauros (σαυρος) meaning 'lizard' and ischion (ισχιον) meaning 'hip joint') is one of the two order/branches of dinosaur. In 1888, Harry Seeley classified dinosaurs into two great orders, based on their hip structure. Saurischians ('lizard-hipped') are distinguished from the ornithischia ('bird-hipped') by retaining the ancestral configuration of bones in the hip. All carnivorous dinosaurs (the theropod) are saurischians, as are one of the two great lineages of...
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