A Virtual Tour of the NMNH: Early Life
Stromatolite
 Western Australia Stromatolite


Western Australia
About 3.5 billion years ago, a colony of microbes--either blue-green algae or bacteria--trapped layers of sediments to form this stromatolite. The sediment layers are clearly visible in this cross-section. Scientists have recovered preserved microbes from stromatolites, providing the oldest evidence of life.


Early Life Main Page Earth 3.5 Billion Years Ago Ediacaran Diorama Dickensonia Burgess Shale Diorama
Early Life
Main Page		 Earth 3.5 Billion Years Ago Ediacaran Diorama Dickensonia Burgess Shale Diorama

Table of Contents  Information Desk  NMNH Links
Calendar of Events Virtual Tour Home Page  NMNH Home Page