Evidence map›Paper›PMID 18337723›Full record

ArticleNature2008

Sophisticated particle-feeding in a large Early Cambrian crustacean.

Thomas H P Harvey, Nicholas J Butterfield

Abstract readHistorical Article
PubMed Publisher
In one paragraph

Article in Nature, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

  1. Two exceptionally preserved biotas from North Dakota reveal cryptic Ordovician shelf ecologies.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  7. Vertically migratingProceedings. Biological sciences · 2021
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  8. Article
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  10. Royal Society open science · 2018
    Article
  11. Early fossil record of Euarthropoda and the Cambrian Explosion.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  12. Article
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  14. Article
  15. Exceptionally preserved crustaceans from western Canada reveal a cryptic Cambrian radiation.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Article
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  17. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Thomas H P HarveyDepartment of Earth Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EQ, UK. thar04@esc.cam.ac.uk
Nicholas J Butterfield

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Most Cambrian arthropods employed simple feeding mechanisms requiring only low degrees of appendage differentiation. In contrast, post-Cambrian crustaceans exhibit a wide diversity of feeding specializations and possess a vast ecological repertoire. Crustaceans are evident in the Cambrian fossil record, but have hitherto been known exclusively from small individuals with limited appendage differentiation. Here we describe a sophisticated feeding apparatus from an Early Cambrian arthropod that had a body length of several centimetres. Details of the mouthparts resolve this taxon as a probable crown-group (pan)crustacean, while its feeding style, which allowed it to generate and handle fine food particles, significantly expands the known ecological capabilities of Cambrian arthropods. This Early Cambrian record predates the major expansions of large-bodied, particle-handling crustaceans by at least one hundred million years, emphasizing the importance of ecological context in driving adaptive radiations.

Indexed as

FossilsAnimalsBiological EvolutionBody SizeCrustaceaFeeding BehaviorHistory, AncientMouthNorthwest Territories

Identifiers

PMID18337723

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.