Evidence map›Paper›PMID 24336573›Full record

ArticleScientific reports2013

Discovery of 505-million-year old chitin in the basal demosponge Vauxia gracilenta.

H Ehrlich, J Keith Rigby, J P Botting, M V Tsurkan, C Werner, P Schwille, Z Petrášek, A Pisera, P Simon, V N Sivkov and 10 more

Abstract read
In one paragraph

Article in Scientific reports, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
–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

36 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Calcite Nanotuned Chitinous Skeletons of GiantInternational journal of molecular sciences · 2021
    Article
  8. Article
  9. Article
  10. Review
  11. Structural colours in diverse Mesozoic insects.Proceedings. Biological sciences · 2020
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

20 authors.

H EhrlichInstitute of Experimental Physics, TU Bergakademie Freiberg, D-09599 Freiberg, Germany.
J Keith Rigby1] Museum of Paleontology, Brigham Young University, Provo, Utah, USA 84602-3300 [2].
J P BottingLeeds Museum Discovery Centre, Leeds LS10 1LB, UK.
M V TsurkanLeibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials, D-01069 Dresden, Germany.
C WernerLeibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials, D-01069 Dresden, Germany.
P SchwilleMax Planck Institute of Biochemistry, 82152 Martinsried, Germany.
Z PetrášekMax Planck Institute of Biochemistry, 82152 Martinsried, Germany.
A PiseraInstitute of Paleobiology, Polish Academy of Sciences, 00-818 Warszawa, Poland.
P SimonMax Planck Institute of Chemical Physics of Solids, D-01187 Dresden, Germany.
V N SivkovDepartment of Mathematics Komi SC UrD RAS, Syktyvkar, Russia.
D V VyalikhInstitute of the Solid State Physics, Dresden University of Technology, D-01069 Dresden, Germany.
S L Molodtsov1] Institute of Experimental Physics, TU Bergakademie Freiberg, D-09599 Freiberg, Germany [2] European XFEL GmbH, Albert-Einstein-Ring 19, D-22761 Hamburg, Germany.
D KurekCentre "Bioengineering", Russian Academy of Sciences, 117312 Moscow, Russia.
M KammerInstitute of Bioanalytical Chemistry, TU Dresden, D-01069 Dresden, Germany.
S HunoldtInstitute of Bioanalytical Chemistry, TU Dresden, D-01069 Dresden, Germany.
R BornR&D Chemistry, EKF Diagnostics, D-39179 Barleben, Germany.
D StawskiDepartment of Material Commodity Sciences and Textile Metrology, Lodz University of Technology, 90-924 Łódź, Poland.
A SteinhofMax Planck Institute of Biogeochemistry, D-07701, Jena, Germany.
V V BazhenovInstitute of Experimental Physics, TU Bergakademie Freiberg, D-09599 Freiberg, Germany.
T GeislerSteinmann-Institut für Geologie, Mineralogie und Paläontologie, University of Bonn, D-53115 Bonn, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sponges are probably the earliest branching animals, and their fossil record dates back to the Precambrian. Identifying their skeletal structure and composition is thus a crucial step in improving our understanding of the early evolution of metazoans. Here, we present the discovery of 505-million-year-old chitin, found in exceptionally well preserved Vauxia gracilenta sponges from the Middle Cambrian Burgess Shale. Our new findings indicate that, given the right fossilization conditions, chitin is stable for much longer than previously suspected. The preservation of chitin in these fossils opens new avenues for research into other ancient fossil groups.

Indexed as

ChitinFossilsAnimalsBiological EvolutionPolysaccharidesPoriferaChitinPolysaccharides

Identifiers

PMID24336573
PMCPMC3861796

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.