Definitions for "Stromatolites"
Structures produced by cyanobacteria by entrapment of sediment grains on the sticky surfaces of the bacteria Geologic Range: Archean to Recent
Horizontal to columnar sedimentary buildup composed of thin alternating layers of sediment and blue-green bacteria.
The distinct pattern left by Precambrian blue-green algae on the host rock.
Trace fossils of bacterial communities, occurring as dome or column like structures; may be very ancient, but existing as living communities on the West Australian coast.