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释义
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun] > division Pelmatozoa > class Crinoidea > fossil or encrinite > family Pentacrinidae > vertebral joint (1)
star stone1652

Any of the pentagonal or star-shaped stem ossicles of fossil pentacrinites; = astroite, n. 2.

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更新时间:2025/1/4 4:57:11