Evidence for Life on Earth More Than 3850 Million Years Ago

@article{Holland1997EvidenceFL,
  title={Evidence for Life on Earth More Than 3850 Million Years Ago},
  author={Heinrich Dick Holland},
  journal={Science},
  year={1997},
  volume={275},
  pages={38 - 39}
}
When did life first appear on Earth? Previous efforts to answer this fundamental question have found early life as far back as 3450 million years ago, in rock formations in Australia. In his Perspective, Holland discusses data recently published by Mojzsis et al. in the journal Nature that pushes the earliest life back to more than 3850 million years ago. 

Vestiges of a beginning: Clues to the emergent biosphere recorded in the oldest known sedimentary rocks

Recent explorations of the oldest known rocks of marine sedimentary origin from the southwestern coast of Greenland suggest that they preserve a biogeochemical record of early life. On the basis of

Review of Research on the Origins of Life

Recently, some new scientific results on the origin of life have been reported. They have led to important discussions on the nature of life. Life, in this paper, means all living existence, which

Can Life Develop in the Expanded Habitable Zones around Red Giant Stars?

We present some new ideas about the possibility of life developing around subgiant and red giant stars. Our study concerns the temporal evolution of the habitable zone. The distance between the star

Hipotezy o powstaniu i wczesnej ewolucji życia

The current status of the research concerning the origin and early evolution of life on Earth is discussed and the "RNA world" seems to be better supported experimentally, including a successful synthesis in "prebiotic" conditions, an active pirymidyne nucleotide, a functioning artificial protocell, and an autocatalytic rybosyme system capable of exponential growth and evolution.

Evolution of the Earth System

The origin and evolution of the earth system have been deciphered by various methodologies including (1) geochronology, (2) comparative planetology, (3) computer simulation, (4) isotope geochemistry,

Geochemical and Biological Consequences of Phytoplankton Evolution

Acetylene as fast food: implications for development of life on anoxic primordial Earth and in the outer solar system.

It is hypothesized that microbes with acetylene hydratase played a key role in the evolution of Earth's early biosphere by exploiting an available source of carbon from the atmosphere and in so doing formed protective niches that allowed for other microbial processes to flourish.

Regime Shift of Genome Size Crossing the Chasm of Eukaryogenesis

The origin of the nucleus remains a great mystery in life science, although nearly two centuries have passed since the discovery of nuclei. To date, studies of eukaryogenesis have focused largely on
...

References

SHOWING 1-2 OF 2 REFERENCES

Evidence for life on Earth before 3,800 million years ago

IT is unknown when life first appeared on Earth. The earliest known microfossils (˜3,500 Myr before present) are structurally complex, and if it is assumed that the associated organisms required a