Three-dimensional preservation of cellular and subcellular structures suggests 1.6 billion-year-old crown-group red algae

Fig 20

Summary of recent published results from radiometric age determinations of Lower Vindhyan rocks in the Son Valley and the Chitrakoot area.

The shaded band indicates correlation of the Tirohan Dolomite (Chitrakoot Formation) with the Rohtas Limestone. Uncertainties are 2σ.