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Macronaria is a clade of sauropod dinosaurs from the Middle Jurassic (Bathonian) to Late Cretaceous Periods of what are now North America, South America, Europe, Asia, Africa and Australia. The name means 'large nostrils' (from Greek ''makros'' 'big' and Latin ''nares'' 'nostrils'), in reference to the large nasal openings high on the head that probably supported fleshy resonating chambers. Macronaria consists of a single main group, Titanosauriformes, along with several more basal taxa. Titanosauriformes in turn contains the brachiosaurids and the titanosaurians and is one of the largest sauropod groups, which also contains some of the longest, tallest and most massive dinosaurs of all time. ==Systematics== Taxonomy after Mannion et al. (2013)〔P. D. Mannion, P. Upchurch, R. N. Barnes and O. Mateus. 2013. Osteology of the Late Jurassic Portuguese sauropod dinosaur Lusotitan atalaiensis (Macronaria) and the evolutionary history of basal titanosauriforms. Zoological Journal of the Linnean Society 168:98-206〕 and D'Emic (2012) unless otherwise noted. * Branch Macronaria * * ''Abrosaurus''〔P. Upchurch, P. M. Barrett, and P. Dodson. 2004. Sauropoda. In D. B. Weishampel, H. Osmolska, and P. Dodson (eds.), The Dinosauria (2nd edition). University of California Press, Berkeley 259-322〕 * * ''Aragosaurus'' * * ''Daanosaurus'' * * ''Dongbeititan'' * * ''Galveosaurus'' * * ''Janenschia'' * * ''Lusotitan'' * * Family Camarasauridae〔Mocho, P., Royo‐Torres, R., & Ortega, F. (2014). Phylogenetic reassessment of Lourinhasaurus alenquerensis, a basal Macronaria (Sauropoda) from the Upper Jurassic of Portugal. Zoological Journal of the Linnean Society, 170(4), 875-916.〕 * * Clade Titanosauriformes * * * ''Australodocus'' * * * ''Baotianmansaurus'' * * * ''"Brachiosaurus" nougaredi'' * * * ''Duriatitan'' * * * ''Eucamerotus'' * * * ''Fukuititan'' * * * ''Fusuisaurus'' * * * ''Jiutaisaurus'' * * * ''Ornithopsis''〔P. D. Mannion. 2010. A revision of the sauropod dinosaur genus 'Bothriospondylus' with a redescription of the type material of the Middle Jurassic form 'B. madagascariensis. Palaeontology 53(2):277-296〕 * * * ''Sonorasaurus'' * * * Family Brachiosauridae * * * Branch Somphospondyli * * * * ''Agustinia''〔 * * * * ''Angolatitan'' * * * * ''Astrophocaudia'' * * * * ''Brontomerus'' * * * * ''Chubutisaurus'' * * * * ''Gobititan'' * * * * ''Huanghetitan'' * * * * ''Liubangosaurus'' * * * * ''Ligabuesaurus'' * * * * ''Malarguesaurus'' * * * * ''Pelorosaurus'' * * * * ''Pukyongosaurus'' * * * * ''Ruyangosaurus'' * * * * ''Sauroposeidon'' * * * * ''Sonidosaurus'' * * * * ''Tastavinsaurus'' * * * * ''Wintonotitan'' * * * * Family Euhelopodidae * * * * Node Titanosauria 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「Macronaria」の詳細全文を読む スポンサード リンク
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