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  • Thumbnail for Crinoid
    composed of a column of highly porous ossicles which are connected by ligamentary tissue. It attaches to the substrate with a flattened holdfast or with...
    43 KB (4,580 words) - 22:08, 19 November 2024
  • to the tuber calcis, in its central zone. There is a slight fossa for ligamentary attachment near the anterior margin in front of the insertion of the...
    18 KB (1,932 words) - 00:40, 5 November 2024