New paper about stromatolites from Czechia

Stromatolites are organosedimentary laminated structures that grow gradually through time due to the activity of microorganisms. The presence of stromatolites in formations as old as ∼3.7 Ga provides the earliest macroscopic traces of life on the Earth. A new paper under the leadership of Lukáš Ackerman of the Institute of Geology presents a detailed study of Ediacaran stromatolitic cherts from the Bohemian Massif. Collected data suggest a biogenic origin of primary carbonaceous stromatolite precursors that formed in shallow-water lagoons on seamount slopes. The presence of late-stage diagenetic modifications may be related to subsequent burial and low-grade metamorphism within the accretionary wedge. This paper represents a significant contribution to the stromatolite issue. Link: This paper