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 …

It has been universally believed that the soluble and insoluble components of coal tar pitch
obtained by solvent extraction were good precursors to prepare mesophase cokes. The …

The early Neoproterozoic Era witnessed the initial ecological rise of eukaryotes at ca. 800
Ma. To assess whether nitrate availability played an important role in this evolutionary event …

Abstract North China Craton is one of the old cratons preserved continues recording of the
early evolution of eukaryotes. Organic wall microfossils (OWMs) of eukaryotic affinity have …

Fourier transform infrared spectroscopy (FTIR) provides a rapid non-destructive molecular
characterization of organic and inorganic material in geological samples. Combination of …

Pitch-based materials with different microstructures were prepared at low-temperature
carbonization utilizing different green cokes with four optical textures (mosaic structure …

Abstract The Mesoproterozoic-Neoproterozoic transition represents a crucial interval of
evolutionary innovation and phylogenetic diversification. A spotty fossil record indicates that …

Symbiosis represents close and long-term interactions—which can be mutualistic,
commensalistic, or parasitic—between two different taxa. Symbiotic associations play a …

Common members of Proterozoic macrofossil assemblages usually include discs and tubes.
Particularly, discoidal forms (eg, Chuaria and abundant unnamed discs) and tubular forms …

This work presents a detailed taxonomic study on organic-walled microfossils from the
Ediacaran Sete Lagoas Formation (Bambuí Group) at the Barreiro section in the Januária …