e/Thrombolite

Information
has gloss	eng: Thrombolites are clotted accretionary structures formed in shallow water by the trapping, binding, and cementation of sedimentary grains by biofilms of microorganisms, especially cyanobacteria (commonly known as blue-green algae). Stromatolites are similar but consist of layered accretions.
lexicalization	eng: Thrombolite
instance of	e/Living fossil

Media
media:img	Lake Clifton SMC 2008.jpg