Evidence map›Paper›PMID 28696285›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2017

Early Paleocene landbird supports rapid phylogenetic and morphological diversification of crown birds after the K-Pg mass extinction.

Daniel T Ksepka, Thomas A Stidham, Thomas E Williamson

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
19.4field-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

28 citing papers in PubMed, 94 citations in OpenAlex.

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  12. Deep time diversity and the early radiations of birds.Proceedings of the National Academy of Sciences of the United States of America · 2021
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  20. Climatic shifts drove major contractions in avian latitudinal distributions throughout the Cenozoic.Proceedings of the National Academy of Sciences of the United States of America · 2019
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 2 countries.

Daniel T KsepkaBruce Museum, Greenwich, CT 06830; dksepka@brucemuseum.org.
Thomas A StidhamKey Laboratory of Vertebrate Evolution and Human Origins of the Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China.
Thomas E WilliamsonNew Mexico Museum of Natural History and Science, Albuquerque, NM 87104.
Bruce Museum · USChinese Academy of Sciences · CNNew Mexico Museum of Natural History and Science · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Evidence is accumulating for a rapid diversification of birds following the K-Pg extinction. Recent molecular divergence dating studies suggest that birds radiated explosively during the first few million years of the Paleocene; however, fossils from this interval remain poorly represented, hindering our understanding of morphological and ecological specialization in early neoavian birds. Here we report a small fossil bird from the Nacimiento Formation of New Mexico, constrained to 62.221-62.517 Ma. This partial skeleton represents the oldest arboreal crown group bird known. Phylogenetic analyses recovered

Indexed as

BirdsFossilsPhylogenyAnimalsExtinction, BiologicalGenetic Speciationavesevolutionfossilmorphologyphylogeny

Identifiers

PMID28696285
PMCPMC5544281
OpenAlexW2736109093

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.