Evidence map›Paper›PMID 29535324›Full record

ArticleScientific reports2018

The Boring Billion, a slingshot for Complex Life on Earth.

Indrani Mukherjee, Ross R Large, Ross Corkrey, Leonid V Danyushevsky

Abstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed.

  1. Review
  2. Environmental phylogenetics supports a steady diversification of crown eukaryotes starting from the mid-Proterozoic.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. A diverse Palaeoproterozoic microbial ecosystem implies early eukaryogenesis.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Indrani MukherjeeCentre for Ore Deposits and Earth Sciences (CODES), University of Tasmania, Hobart, Australia. Indrani.Mukherjee@utas.edu.au.ORCID 0000-0002-2808-1821
Ross R LargeCentre for Ore Deposits and Earth Sciences (CODES), University of Tasmania, Hobart, Australia.
Ross CorkreyTasmanian Institute for Agricultural Research (TIA), University of Tasmania, Hobart, Australia.
Leonid V DanyushevskyCentre for Ore Deposits and Earth Sciences (CODES), University of Tasmania, Hobart, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The period 1800 to 800 Ma ("Boring Billion") is believed to mark a delay in the evolution of complex life, primarily due to low levels of oxygen in the atmosphere. Earlier studies highlight the remarkably flat C, Cr isotopes and low trace element trends during the so-called stasis, caused by prolonged nutrient, climatic, atmospheric and tectonic stability. In contrast, we suggest a first-order variability of bio-essential trace element availability in the oceans by combining systematic sampling of the Proterozoic rock record with sensitive geochemical analyses of marine pyrite by LA-ICP-MS technique. We also recall that several critical biological evolutionary events, such as the appearance of eukaryotes, origin of multicellularity & sexual reproduction, and the first major diversification of eukaryotes (crown group) occurred during this period. Therefore, it appears possible that the period of low nutrient trace elements (1800-1400 Ma) caused evolutionary pressures which became an essential trigger for promoting biological innovations in the eukaryotic domain. Later periods of stress-free conditions, with relatively high nutrient trace element concentration, facilitated diversification. We propose that the "Boring Billion" was a period of sequential stepwise evolution and diversification of complex eukaryotes, triggering evolutionary pathways that made possible the later rise of micro-metazoans and their macroscopic counterparts.

Indexed as

AnimalsBiological EvolutionGeologic SedimentsOceans and SeasOxygenSeawaterTrace ElementsOxygenTrace Elements

Identifiers

PMID29535324
PMCPMC5849639

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.