Superb Precambrian Stromatolites from Morocco

Description: A polished section of a domal stromatolite from Morocco. Stromatolites are remnants of the most ancient of colonial organisms. Stromatolites are fossils that are the result of the work of simple blue-green “algae” or Cyanophytes, which lived in chains or mats covered in a jellylike substance. By taking in carbon dioxide as a food source, they precipitate limy deposits on the jelly that builds up in layers. Thus these organisms build up stony supports for their colonies. These mound like structures can be anywhere from several centimeters to several meters in height. This piece has been cut longitudinally across the dome, and given a high polish. The reverse shows the material in its native state, making for a most attractive display piece.