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''Chromogisaurus'' is a sauropodomorph which existed in Argentina during the late Triassic period.〔Ezcurra, M. D. 2010. "A new early dinosaur (Saurischia: Sauropodomorpha) from the Late Triassic of Argentina: a reassessment of dinosaur origin and phylogeny." ''Journal of Systematic Palaeontology'' 8: 371-425.〕 ''Chromogisaurus'' was first named by Martín Daniel Ezcurra in 2010, and the type species is ''Chromogisaurus novasi''.〔 The generic name is derived from Greek ''chroma'', "colour", and ''gè'', "earth", a reference to the Valle Pintado, the "Painted Valley". The specific name honours Fernando Emilio Novas. The holotype, PVSJ 846, has been found in a layer of the Ischigualasto Formation dating from the Carnian. This makes ''Chromogisaurus'' one of the oldest known dinosaurs. The specimen consists of a partial skeleton lacking the skull. It includes elements of the front and hind limbs; the pelvis and two caudal vertebrae. ''Chromogisaurus'' was a herbivore and about two metres long. According to Ezcurra it was optionally quadrupedal. A cladistic analysis by Ezcurra indicated ''Chromogisaurus'' was a member of a clade of basal Sauropodomorpha, the Guaibasauridae, together with ''Guaibasaurus'', the disputed ''Agnosphitys'', ''Panphagia'' and ''Saturnalia''. Within Guaibasauridae it forms a smaller clade with its sister taxon ''Saturnalia'', the Saturnaliinae. ==References== 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「Chromogisaurus」の詳細全文を読む スポンサード リンク
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