Evidence map›Paper›PMID 34055484›Full record

ArticlePeerJ2021

Accessory cusp expression at the enamel-dentine junction of hominin mandibular molars.

Thomas W Davies, Zeresenay Alemseged, Agness Gidna, Jean-Jacques Hublin, William H Kimbel, Ottmar Kullmer, Fred Spoor, Clément Zanolli, Matthew M Skinner

Open access · goldAbstract read
In one paragraph

Article in PeerJ, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

5 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Dental data challenge the ubiquitous presence ofProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
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

9 authors at 8 institutions in 5 countries.

Thomas W DaviesDepartment of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
Zeresenay AlemsegedDepartment of Organismal Biology and Anatomy, University of Chicago, Chicago, Illinois, United States.
Agness GidnaPaleontology Unit, National Museum of Tanzania, Dar es Salaam, Tanzania.
Jean-Jacques HublinDepartment of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
William H KimbelInstitute of Human Origins, and School of Human Evolution and Social Change, Arizona State University, Tempe, Arizona, United States.
Ottmar KullmerDepartment of Paleobiology and Environment, Institute of Ecology, Evolution, and Diversity, Goethe University, Frankfurt, Germany.
Fred SpoorDepartment of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.ORCID 0000-0002-8829-7421
Clément ZanolliUniv. Bordeaux, CNRS, MCC, PACEA, UMR 5199, F-33600 Pessac, France.
Matthew M SkinnerDepartment of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.ORCID 0000-0001-8321-3543
Arizona State University · USCentre National de la Recherche Scientifique · FRCollège de France · FRGoethe University Frankfurt · DEMax Planck Institute for Evolutionary Anthropology · DENatural History Museum · GBUniversity of Chicago · USUniversity of the Witwatersrand · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Studies of hominin dental morphology frequently consider accessory cusps on the lower molars, in particular those on the distal margin of the tooth (C6 or distal accessory cusp) and the lingual margin of the tooth (C7 or lingual accessory cusp). They are often utilized in studies of hominin systematics, where their presence or absence is assessed at the outer enamel surface (OES). However, studies of the enamel-dentine junction (EDJ) suggest these traits may be more variable in development, morphology and position than previously thought. Building on these studies, we outline a scoring procedure for the EDJ expression of these accessory cusps that considers the relationship between these accessory cusps and the surrounding primary cusps. We apply this scoring system to a sample of Plio-Pleistocene hominin mandibular molars of

Indexed as

Accessory cuspsDiscrete traitsEnamel-dentine junctionHomininHomoTaxonomyTooth developmentTooth morphology

Identifiers

PMID34055484
PMCPMC8141287
OpenAlexW3164370714

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.