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Betelgeusia
''Betelgeusia'' is an extinct genus of sea stars in the family Astropectinidae. It was described by Blake and Reid, in 1998, and existed in what is now the Netherlands, Texas, United States, Morocco, and India, during the Middle Jurassic through the Cretaceous period. It contains the species ''B. exposita'', ''B. reidi'', and ''B. orientalis''.〔 ==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「Betelgeusia」の詳細全文を読む
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