Evidence map›Paper›PMID 32393623›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2020

A Triassic stem-salamander from Kyrgyzstan and the origin of salamanders.

Rainer R Schoch, Ralf Werneburg, Sebastian Voigt

Abstract readHistorical Article
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Review
  2. Pedicellate Teeth in Archaic Salamanders (Lissamphibia, Caudata).Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections · 2025
    Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Middle Jurassic fossils document an early stage in salamander evolution.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. 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

3 authors.

Rainer R SchochStaatliches Museum für Naturkunde in Stuttgart, D-70191 Stuttgart, Germany; rainer.schoch@smns-bw.de.ORCID 0000-0002-0312-2877
Ralf WerneburgNaturhistorisches Museum Schloss Bertholdsburg, D-98553 Schleusingen, Germany.
Sebastian VoigtUrweltmuseum GEOSKOP/Burg Lichtenberg (Pfalz), D-66871 Thallichtenberg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The origin of extant amphibians remains largely obscure, with only a few early Mesozoic stem taxa known, as opposed to a much better fossil record from the mid-Jurassic on. In recent time, anurans have been traced back to Early Triassic forms and caecilians have been traced back to the Late Jurassic

Indexed as

Biological EvolutionCaudataAnimalsFossilsHistory, AncientKyrgyzstanPhylogenyamphibiansevolutionphylogeny

Identifiers

PMID32393623
PMCPMC7261083

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.