http://digitalnatura.org/details.php?image_id=13017 Mon, 13 Apr 2026 16:19:09 GMT http://digitalnatura.org/data/thumbnails/46/Collenia_copia.jpg http://digitalnatura.org/details.php?image_id=13017 http://digitalnatura.org/details.php?image_id=13017#comment13405 Tue, 24 Mar 2009 20:00:50 GMT DigitalNatura.Org - Estromatolito, Collenia undosa http://digitalnatura.org/details.php?image_id=13017#comment13405