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| Description: A Grypania spiralis; 2.1 billion years ago B Tawuia; 1.6 billion years ago C Bangiomorpha pubescens; 1.2 billion years ago Picture Stats: Views: 68 Filesize: 1.03MB Height: 916 Width: 2242 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=48447 |