Evidence map›Paper›PMID 10781044›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2000

Precambrian animal diversity: putative phosphatized embryos from the Doushantuo Formation of China.

J Y Chen, P Oliveri, C W Li, G Q Zhou, F Gao, J W Hagadorn, K J Peterson, E H Davidson

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
8.9field-weighted citation impact, top 2% of its field
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

20 citing papers in PubMed, 186 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Molecular clocks and the early evolution of metazoan nervous systems.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2015
    Review
  5. Article
  6. Article
  7. Review
  8. Evolution of centralized nervous systems: two schools of evolutionary thought.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Review
  9. Article
  10. Article
  11. Complex embryos displaying bilaterian characters from Precambrian Doushantuo phosphate deposits, Weng'an, Guizhou, China.Proceedings of the National Academy of Sciences of the United States of America · 2009
    Article
  12. The earliest fossil record of the animals and its significance.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2008
    Review
  13. Article
  14. Review
  15. Review
  16. Experimental taphonomy shows the feasibility of fossil embryos.Proceedings of the National Academy of Sciences of the United States of America · 2006
    Article
  17. The first tunicate from the Early Cambrian of South China.Proceedings of the National Academy of Sciences of the United States of America · 2003
    Article
  18. Eumetazoan fossils in terminal proterozoic phosphorites?Proceedings of the National Academy of Sciences of the United States of America · 2000
    Article
  19. Regulatory evolution and the origin of the bilaterians.Proceedings of the National Academy of Sciences of the United States of America · 2000
    Review
  20. Introduction. The evolution of evo-devo biology.Proceedings of the National Academy of Sciences of the United States of America · 2000
    Article
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

8 authors at 3 institutions in 3 countries.

J Y ChenNanjing Institute of Geology and Paleontology, Nanjing 210008, China. chenjy@jlonline.com
P Oliveri
C W Li
G Q Zhou
F Gao
J W Hagadorn
K J Peterson
E H Davidson
Nanjing Institute of Geology and Paleontology · CNCalifornia Institute of Technology · USNational Tsing Hua University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Putative fossil embryos and larvae from the Precambrian phosphorite rocks of the Doushantuo Formation in Southwest China have been examined in thin section by bright field and polarized light microscopy. Although we cannot completely exclude a nonbiological or nonmetazoan origin, we identified what appear to be modern cnidarian developmental stages, including both anthozoan planula larvae and hydrozoan embryos. Most importantly, the sections contain a variety of small (</=200 microm) structures that greatly resemble gastrula stage embryos of modern bilaterian forms.

Indexed as

Biological EvolutionFossilsGenetic VariationAnimalsBody PatterningChinaCnidariaEmbryo, NonmammalianGastrulaPaleontologyNASA Discipline Evolutionary BiologyNon-NASA Center

Identifiers

PMID10781044
PMCPMC18256
OpenAlexW2165010994

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.