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''Indosaurus'' (meaning "Indian lizard") is a genus of theropod dinosaur once living in what is now India. It lived approximately 69 million years ago, in the Maastrichtian division of the Late Cretaceous. It weighed roughly 700 kg (1540 lb). The fossil evidence from Jabalpur, India, includes the now-lost〔S. Chatterjee, 1978, "''Indosuchus'' and ''Indosaurus'', Cretaceous carnosaurs from India", ''Journal of Paleontology'' 52(3): 570-580〕 holotype GSI K27/565, a partial skull of unusual thickness found by Charles Alfred Matley in the Lameta Formation; other parts of the skeleton have later been referred to it. The cranium suggests that ''Indosaurus'' may have had horns above its eyes, although all the fossil evidence has since been lost. ''Indosaurus'' may have been related to the unusual South American dinosaur, ''Carnotaurus''. If this is the case then India had not been a separate continent for the previous 100 million years, as many paleontologists had thought. It is possible instead that the two land masses were connected intermittently by land bridges, allowing dinosaurs from both areas to migrate. The type species, ''Indosaurus matleyi'', was named by Huene and Matley in 1933.〔F. von Huene and C. A. Matley, 1933, "The Cretaceous Saurischia and Ornithischia of the Central Provinces of India", ''Palaeontologica Indica (New Series), Memoirs of the Geological Survey of India'' 21(1): 1-74〕 The generic name refers to India. The specific name honours Matley. This species now also includes ''Megalosaurus matleyi''; confusingly, the dubious tooth taxon ''Orthogoniosaurus'' shares the same specific name (but is based on different material). Some paleontologists have speculated that ''Indosuchus'' and ''Compsosuchus'' should also be included within Indosaurus. Originally assigned by Huene to the Allosauridae, ''Indosaurus'' is today considered a member of the Abelisauridae. ==See also== * Timeline of ceratosaur research 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Indosaurus」の詳細全文を読む スポンサード リンク
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