They occasionally form structured colonies which go on to create microbial mats.
Although usually only a few centimetres thick, microbial mats create a wide range of internal chemical environments.
From the evidence in these rocks, it is likely that early life existed in the form of microbial mats and stromatolites.
Before the Cambrian, the sea floor was covered by microbial mats.
It may be considered one of many types of microbial mats.
As a result microbial mats began to produce the atmosphere we know today, in which free oxygen is a vital component.
These increases would have made microbial mats the planet's dominant ecosystems.
If such endosymbiosis was an important factor, microbial mats would have encouraged it.
The microbial mats were slow, careful, with the gingerly care of the vastly elderly.
Research at station includes dune stabilization using grasses and microbial mats.