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出典:Wikipedia
出典:『Wikipedia』 (2010/03/25 05:44 UTC 版)
Aglaocrinus is an extinct species of crinoidea in the Cladia order. It has been proposed that it was a blind, stationary (attached) suspension feeder the hard parts of which were composed of magnesium calcite. It has been discovered in 3 locations in North America.
Aglaocrinus