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Raymondaspis : ウィキペディア英語版 | Raymondaspis
''Raymondaspis'' is a genus of trilobites in the family Styginidae. It was described by Pribyl in 1949, and contains the species ''R. reticulatus'' and ''R. turgidus'' from the Whiterockian of Canada, ''R. vespertina'' from the Ordovician and Whiterockian of the United States and Norway, and a new species, ''R. grandigena'', which existed during the Middle Ordovician of what is now Sweden. ''R. grandigena'' was described in 2012 by Martin Stein and Jan Bergström. ==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「Raymondaspis」の詳細全文を読む
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