| Capsospongia ： ウィキペディア英語版|
''Capsospongia'' is a middle Cambrian sponge genus known from 2 specimens in the Burgess shale. It has a narrow base, and consists of bulging rings which get wider further up the sponge, resulting in a conical shape. Its open top was presumably used to expel water that had passed through the sponge cells and been filtered for nutrients.
Like most sponges, ''Capsospoingia'' had a spicular skeleton; long spicules parallel to the growth direction formed columns which were connected by shorter lateral spicules.
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抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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