Evidence map›Paper›PMID 32025055›Full record

ArticlePalaeontology2020

Taphonomic experiments resolve controls on the preservation of melanosomes and keratinous tissues in feathers.

Tiffany S Slater, Maria E McNamara, Patrick J Orr, Tara B Foley, Shosuke Ito, Kazumasa Wakamatsu

Abstract read
In one paragraph

Article in Palaeontology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

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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

6 authors.

Tiffany S SlaterSchool of Biological, Earth & Environmental Sciences University College Cork Cork Ireland.ORCID https://orcid.org/0000-0003-1475-8376
Maria E McNamaraSchool of Biological, Earth & Environmental Sciences University College Cork Cork Ireland.
Patrick J OrrUCD School of Earth Sciences University College Dublin Dublin Ireland.
Tara B FoleyDepartment of Anatomy & Neuroscience University College Cork Cork Ireland.
Shosuke ItoDepartment of Chemistry Fujita Health University School of Health Sciences Toyoake Aichi Japan.
Kazumasa WakamatsuDepartment of Chemistry Fujita Health University School of Health Sciences Toyoake Aichi Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fossils are a key source of data on the evolution of feather structure and function through deep time, but their ability to resolve macroevolutionary questions is compromised by an incomplete understanding of their taphonomy. Critically, the relative preservation potential of two key feather components, melanosomes and keratinous tissue, is not fully resolved. Recent studies suggesting that melanosomes are preferentially preserved conflict with observations that melanosomes preserve in fossil feathers as external moulds in an organic matrix. To date, there is no model to explain the latter mode of melanosome preservation. We addressed these issues by degrading feathers in systematic taphonomic experiments incorporating decay, maturation and oxidation in isolation and combination. Our results reveal that the production of mouldic melanosomes requires interactions with an oxidant and is most likely to occur prior to substantial maturation. This constrains the taphonomic conditions under which melanosomes are likely to be fossilized. Critically, our experiments also confirm that keratinous feather structures have a higher preservation potential than melanosomes under a range of diagenetic conditions, supporting hitherto controversial hypotheses that fossil feathers can retain degraded keratinous structures.

Indexed as

experimental taphonomyfossil colourfossil featherkeratinmelaninmouldic melanosome

Identifiers

PMID32025055
PMCPMC6988486

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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.