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''Sagavia'' is a genus of trilobites that lived during the Middle and Upper Ordovician in what are now Northwest and Southeast China, North Kazakhstan and Wales. It is a typical cyclopygid that can be distinguished by its large but separate eyes, elongated glabella, five thorax segments and a pygidium with clearly defined axis and border. == Distribution == * ''S. felix'' has been collected from the Middle Ordovician of Kazakhstan (Caradoc, ''Nemagraptus gracilis'' Zone, Saga Formation, Saga River section, Stepnyak district). * ''S. modica'' is known from the Middle Ordovician of Kazakhstan (Caradoc, ''Nemagraptus gracilis'' Zone, Saga Formation, Saga River section, Stepnyak district). * ''S. chuanxiensis'' was found in the Middle and Upper Ordovician of China (late Caradoc-Ashgill, top of the Pagoda Formation, limestone block in a Triassic melange accumulation at Shiqu; Yuanba, Hougou and Liangshan, Nanzheng; Dangmengou and Zhuyegou, Ningqiang; Qishuba and Gaoqiaogou, Mianxian; all Northwestern Sichuan). * ''S. zhuyegouensis'' occurs at the Middle Ordovician of China (late Caradoc, Dangmengou, Ningqiang Northwestern Sichuan). * ''S. elongata'' is present in the Upper Ordovician of China (?Ashgill, ''Kielanella''-''Tretaspis'' Beds of the Ulugtay District, south Tien Shan). * ''S. glans'' was excavated from the Upper Ordovician of the United Kingdom (late Arenig, Pontyfenni Formation, South Wales). * ''S. heterocyclopygeformis'' is known from the Middle Ordovician of northern Kazakhstan (Caradoc). * ''S. novakellaformis'' occurs at the Koroleva from the Middle Ordovician of northern Kazakhstan (late Llanvirn?), and the United Kingdom (''Hustedograptus teretiusculus'' Biozone of the Llanfawn Mudstone Formation, central Wales).〔 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「Sagavia」の詳細全文を読む スポンサード リンク
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