Trace Fossil, ‘Banded Iron Formation’, ca. 2900000000, ArtAncient
Trace Fossil, ‘Banded Iron Formation’, ca. 2900000000, ArtAncient
Trace Fossil, ‘Banded Iron Formation’, ca. 2900000000, ArtAncient
Trace Fossil, ‘Banded Iron Formation’, ca. 2900000000, ArtAncient
Trace Fossil, ‘Banded Iron Formation’, ca. 2900000000, ArtAncient

As oxygen started being produced
by living organisms it reacted with
iron in our early seas, forming
layer upon layer of iron ore. The
slab here is now considered to be
evidence of the first life on Earth.

Western Australia,
2.9 billion years before present.
Banded iron formation,
Excavated 2017.

Image rights: ArtAncient

About Trace Fossil