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''Rangea'' is a frond-like Ediacaran fossil with six-fold radial symmetry.〔〔 It is the type species of the rangeomorphs. A total of six species have been described, but only the type species ''Rangea schneiderhoehoni'' is considered valid: * ''R. brevior'' Gürich 1933 = ''R. schneiderhoehoni''. * ''R. arborea'' Glaessner et Wade, 1966 = ''Charniodiscus arboreus''. * ''R. grandis'' Glaessner et Wade, 1966 = ''Glassnerina grandis'' = ''Charnia massoni''. * ''R. longa'' Glaessner et Wade, 1966 = ''Charniodiscus longus''. * ''R. sibirica'' Sokolov, 1972 = ''Charnia sibirica'' = ''Charnia massoni''. ''Rangea schneiderhoehoni'' fossils has been found in the Kanies and Kliphoek Members of the Dabis Formation and in the Niederhagen Member of the Nudaus Formation, Namibia. This deposits dated around 548 Myr. Also, ''Rangea'' fossils has been reported from the Ediacaran deposits of Arkhangelsk region, Russia and in Australia. These fossils have an age around 558-555 Myr.〔 ''Rangea'' seems to have rested upon the seabed. ==See also== * Rangeomorph * Ediacaran biota * List of Ediacaran genera ==References== *Glaessner, Martin F.; Wade, Mary 1966: The late Precambrian fossils from Ediacara, South Australia. Palaeontology 9 (4), pp. 599-628. *Gürich, Georg 1930: Uber den Kuibisquarzit in Sudwestafrika, Zeitschrift der Deutschen Geologischen Gesellschaft v.82: p.637. 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「Rangea」の詳細全文を読む スポンサード リンク
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