Apart from these flora and fauna indicators, the fossils also hinted at water life through the sedimentary imprints of ripples of waves from ancient lake shores and drops of rain on the mud.

Due to conservation efforts, only 20 permits per day are available, but the undulating ripples of red, orange, and pink sandstone are worth the wait. Story by Chloe Miller and editing by Stephen ...

The ripples occur in two stratigraphic intervals within the orbitally defined Layered Sulfate Unit: a thin but laterally extensive unit at the base of the Amapari member of the Mirador formation, and ...