Cited by 204Paleontology and Evolutionary BiologyFossil Insects in Ambermelanin and skin pigmentation

The DOI matches its Crossref record; 17 of the 18 references it cites were found in a registry or an index, and 1 are not checked yet.

The colour of fossil feathers

Open access

Abstract

Feathers are complex integumentary appendages of birds and some other theropod dinosaurs. They are frequently coloured and function in camouflage and display. Previous investigations have concluded that fossil feathers are preserved as carbonized traces composed of feather-degrading bacteria. Here, an investigation of a colour-banded feather from the Lower Cretaceous Crato Formation of Brazil revealed that the dark bands are preserved as elongate, oblate carbonaceous bodies 1-2 microm long, whereas the light bands retain only relief traces on the rock matrix. Energy dispersive X-ray analysis showed that the dark bands preserve a substantial amount of carbon, whereas the light bands show no carbon residue. Comparison of these oblate fossil bodies with the structure of black feathers from a living bird indicates that they are the eumelanin-containing melanosomes. We conclude that most fossil feathers are preserved as melanosomes, and that the distribution of these structures in fossil feathers can preserve the colour pattern in the original feather. The discovery of preserved melanosomes opens up the possibility of interpreting the colour of extinct birds and other dinosaurs.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1098/rsbl.2008.0302

Cites

17 of 18 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Flagged first, then by citations

Show all 17 references

Research works printed but not linked: 3

  1. Doguzhaeva L, 2004, Occurrence of ink in Paleozoic and Mesozoic coleoids (Cephalopoda), Mitt. Geol.-Paläont. Inst. Univ. Hamburg, 88, 145
  2. Durrer H. 1986 The skin of birds: coloration. In Biology of the integument 2: vertebrates vol. 2 (eds J. Bereiter-Hahn A. G. Matoltsky & K. S. Richards) pp. 239–247. Berlin Germany: Springer.
  3. Wuttke M, 1983, “Weichteil-Erhaltung” durch lithifizierte Mikroorganismen bei mittel-eozänen Vertebraten aus den Ölschiefern der “Grube Messel” bei Darmstadt, Senck. Leth, 64, 509

Cited by

Sorted by citations

See all 204

Metadata

Authors
Vinther, J., Briggs, D. E. G., Prum, R. O., & Saranathan, V.
Affiliations
Yale University (US)
Corresponding author
Briggs, Derek E.G
Venue
Biology Letters
Published
2008-07-08
Volume
4
Issue
5
Pages
522-525
ISSN
  • 1744-9561 (ISSN-L)
  • 1744-957X
OpenAlex
W2056510498
Cited by
204
References
17
Citations by year
2026: 7 · 2025: 12 · 2024: 8 · 2023: 11 · 2022: 10 · 2021: 11 · 2020: 12 · 2019: 22 · 2018: 9 · 2017: 9 · 2016: 20 · 2015: 11 · 2014: 10 · 2013: 10 · 2012: 14
FWCI
7.10
Type
journal article
Language
en
Open access
Locations
  • Biology Letters (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Bristol Research (University of Bristol) (submittedVersion)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Evolutionary Biology
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Fossil Insects in Amber
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › melanin and skin pigmentation
Keywords
fossil feathers, feather colour, melanosomes, eumelanin, Crato Formation, Lower Cretaceous, theropod dinosaurs, feather-degrading bacteria, extinct birds
MeSH terms
Animals, Birds, Color, Feathers, Fossils, Melanins, Melanosomes, Dinosaurs

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review