Evidence map›Paper›PMID 29535376›Full record

ArticleNature communications2018

Wing bone geometry reveals active flight in Archaeopteryx.

Dennis F A E Voeten, Jorge Cubo, Emmanuel de Margerie, Martin Röper, Vincent Beyrand, Stanislav Bureš, Paul Tafforeau, Sophie Sanchez

Open access · goldAbstract readComparative Study
In one paragraph

Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
16.4field-weighted citation impact, top 1% 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

30 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
  2. Proceedings of the National Academy of Sciences of the United States of America · 2026
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  14. Inferring aerial behavior in Mesozoic dinosaurs: Implications and uncertainties.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  15. The earliest evidence of deep-sea vertebrates.Proceedings of the National Academy of Sciences of the United States of America · 2023
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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 5 institutions in 5 countries.

Dennis F A E VoetenEuropean Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS-40220, 38043, Grenoble Cedex, France. dennis.voeten01@upol.cz.
Jorge CuboSorbonne Université, CNRS-INSU, Institut des Sciences de la Terre Paris, ISTeP UMR 7193, F-75005, Paris, France.
Emmanuel de MargerieCNRS, Laboratoire d'éthologie animale et humaine, Université de Rennes 1, Université de Caen Normandie, 263 Avenue du Général Leclerc, 35042, Rennes, France.
Martin RöperBürgermeister-Müller-Museum, Bahnhofstrasse 8, 91807, Solnhofen, Germany.
Vincent BeyrandEuropean Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS-40220, 38043, Grenoble Cedex, France.ORCID http://orcid.org/0000-0002-0661-3882
Stanislav BurešDepartment of Zoology and Laboratory of Ornithology, Palacký University, 17. listopadu 50, 771 46, Olomouc, Czech Republic.
Paul TafforeauEuropean Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS-40220, 38043, Grenoble Cedex, France.ORCID http://orcid.org/0000-0002-5962-1683
Sophie SanchezEuropean Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS-40220, 38043, Grenoble Cedex, France.ORCID http://orcid.org/0000-0002-3611-6836
European Synchrotron Radiation Facility · FRCentre National de la Recherche Scientifique · FRBayerische Staatssammlung für Paläontologie und Geologie · DEPalacký University Olomouc · CZScience for Life Laboratory · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Archaeopteryx is an iconic fossil taxon with feathered wings from the Late Jurassic of Germany that occupies a crucial position for understanding the early evolution of avian flight. After over 150 years of study, its mosaic anatomy unifying characters of both non-flying dinosaurs and flying birds has remained challenging to interpret in a locomotory context. Here, we compare new data from three Archaeopteryx specimens obtained through phase-contrast synchrotron microtomography to a representative sample of archosaurs employing a diverse array of locomotory strategies. Our analyses reveal that the architecture of Archaeopteryx's wing bones consistently exhibits a combination of cross-sectional geometric properties uniquely shared with volant birds, particularly those occasionally utilising short-distance flapping. We therefore interpret that Archaeopteryx actively employed wing flapping to take to the air through a more anterodorsally posteroventrally oriented flight stroke than used by modern birds. This unexpected outcome implies that avian powered flight must have originated before the latest Jurassic.

Indexed as

Biological EvolutionBirdsFlight, AnimalAnimalsBone and BonesDinosaursFossilsWings, AnimalX-Ray Microtomography

Identifiers

PMID29535376
PMCPMC5849612
OpenAlexW2791698505

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.