Eukaryotic life appears to have flourished surprisingly late in the history of our planet. This
view is based on the low diversity of diagnostic eukaryotic fossils in marine sediments of mid …

Eukaryotes have evolved to dominate the biosphere today, accounting for most documented
living species and the vast majority of the Earth's biomass. Consequently, understanding …

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 …

Although elemental proxies (ie, boron/gallium [B/Ga], strontium/barium [Sr/Ba], and
sulfur/total organic carbon [S/TOC]) have been extensively used to evaluate paleo …

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 …

Cyanobacteria have a long evolutionary history, well documented in marine rocks. They are
also abundant and diverse in terrestrial environments; however, although phylogenies …

Earth's sedimentary record has preserved evidence of life in rocks of low metamorphic grade
back to about 3.2–3.5 billion years ago (Ga). These lines of evidence include information …

Core samples from the deeply buried Ordovician Majiagou Formation below the Huainan
Coalfield (E China) have been investigated for their carbonate types, major and trace …

Some of the oldest postulated non-marine eukaryotic microfossils occur in the 1.1–1.0 Ga
Poll a'Mhuillt, Loch na Dal, and Diabaig formations in NW Scotland. These sedimentary …

Abstract The Nonesuch Formation and related sedimentary units of the Oronto Group,
southern Lake Superior region, midwestern United States, are commonly held to have been …