These images are of a 900 million year old stromatolite fossil from Atar rock formation of Mauritania, Africa. This fossil is from the lo...

This fossil stromatolite was found at Atar Mauritania . Fossil dates to the pre-Cambrian Period. It was on display at the Musée de Mine...

Kona Dolomite dated to over 2 billion years old.  Thought to be a cyanobacteria colony (stromatolite).  Found in the Kona Hills of Marqu...

This specimen is thought to be over 2.5 billion years old. Bacteria and algae appeared at this time in the water.  Volcanic activity pr...

This rock was found in southern Africa's Greenstone Belt.  The color of the rock definitely matches the formation name.  What is spec...

Kona Dolomite dated to over 2 billion years old. Thought to be a cyanobacteria colony (stromatolite). Found in the Kona Hills of Marqu...

Kona Dolomite dated to over 2 billion years old.  Thought to be a cyanobacteria colony (stromatolite).  Found in the Kona Hills of Marquet...

The Louisville Zoo has a Dinosaur exhibit on display till October 31, 2010.  Part of the display includes an exhibit sign with a number of f...

Here is a fossil that is sold in the United States described as an Archean butterstone from the Greenstone Belt of South Africa. The rock is...