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| Description: Chalk cliffs 90 meters (300 feet) high along the shore in Dover, England, were once seafloor. Chalk consists of remains of foraminifera and other organisms with calcium carbonate–rich shells. Picture Stats: Views: 57 Filesize: 525.82kB Height: 1125 Width: 1500 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=48285 |