The rock record contains a rich variety of sedimentary surface textures on siliciclastic
sandstone, siltstone and mudstone bedding planes. In recent years, an increasing number …

It is often assumed that life originated and diversified in the oceans prior to colonizing the
land. However, environmental constraints in chemical evolution models point towards critical …

Stromatolites are abundant in shallow marine sediments deposited before the evolution of
animals, but in the modern ocean they are restricted to locations where the activity of …

Abstract The Nonesuch Formation microbiota provide a window into ca. 1075 Ma life within
the interior of ancient North America. The Nonesuch water body formed following the …

The Nonesuch Formation in the clastic sedimentary Oronto Group on the Keweenaw
Peninsula of the Upper Peninsula, Michigan, USA most likely represents an ancient lake that …

To date, microbialites include five groups: stromatolites, thrombolites, leiolites, and
dendrolites. All these microbialites occur in carbonate or silica lithologies. However …

Abundant and well-preserved fossil microbenthos occurs in siliciclastic deposits of all Earth
ages, from the early Archean to today. Studies in modern settings show how microbenthos …

In silica‐rich hot spring environments, internally laminated, digitate sinter deposits are often
interpreted as bio‐mediated structures. The organic components of microbial communities …

Fluvial floodplains established prior to the greening of continents have long been
overlooked, despite their relevance for landscape reconstructions in deep time. The record …

Evidence for microbial mats has been reported repeatedly from marine Lower Triassic rocks,
but scarcely mentioned in post-mass extinction terrestrial facies. Here, we report from the …