Evidence map›Paper›PMID 40369075›Full record

ArticleNature2025

Chicago Archaeopteryx informs on the early evolution of the avian bauplan.

Jingmai O'Connor, Alexander Clark, Pei-Chen Kuo, Yosef Kiat, Matteo Fabbri, Akiko Shinya, Constance Van Beek, Jing Lu, Min Wang, Han Hu

Abstract read
PubMed Publisher
In one paragraph

Article in Nature, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

  1. Article
  2. Article
  3. Avian features ofInnovation (Cambridge (Mass.)) · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Insights into the early evolution of modern avian physiology from fossilized soft tissues from the Mesozoic.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  9. 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

10 authors.

Jingmai O'ConnorNegaunee Integrative Research Center, Field Museum of Natural History, Chicago, IL, USA. jingmai.oconnor@gmail.com.ORCID 0000-0002-3898-8283
Alexander ClarkNegaunee Integrative Research Center, Field Museum of Natural History, Chicago, IL, USA.
Pei-Chen KuoNegaunee Integrative Research Center, Field Museum of Natural History, Chicago, IL, USA.
Yosef KiatSchool of Zoology, Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel.ORCID 0000-0002-3485-3517
Matteo FabbriCenter for Functional Anatomy and Evolution, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Akiko ShinyaNegaunee Integrative Research Center, Field Museum of Natural History, Chicago, IL, USA.ORCID 0009-0008-0182-2432
Constance Van BeekNegaunee Integrative Research Center, Field Museum of Natural History, Chicago, IL, USA.
Jing LuKey Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China.
Min WangKey Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China.ORCID 0000-0001-8506-1213
Han HuKey Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China. huhan@ivpp.ac.cn.ORCID 0000-0001-5926-7306

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Here we report on the nearly complete and uncrushed 14th specimen of Archaeopteryx. Exceptional preservation and preparation guided by micro-computed tomographic data make this one of the best exemplars of this iconic taxon, preserving important data regarding skeletal transformation and plumage evolution in relation to the acquisition of flight during early avian evolution. The ventrolaterally exposed skull reveals a palatal morphology intermediate between troodontids

Indexed as

Biological EvolutionBirdsDinosaursFossilsAnimalsFeathersFlight, AnimalPhylogenySkullSpineWings, AnimalX-Ray Microtomography

Identifiers

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.