Evidence map›Paper›PMID 25692765›Full record

ArticlePloS one2015

Dental ontogeny in pliocene and early pleistocene hominins.

Tanya M Smith, Paul Tafforeau, Adeline Le Cabec, Anne Bonnin, Alexandra Houssaye, Joane Pouech, Jacopo Moggi-Cecchi, Fredrick Manthi, Carol Ward, Masrour Makaremi and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
64.3field-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

32 citing papers in PubMed, 112 citations in OpenAlex.

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  16. A chimpanzee enamel-diet δJournal of human evolution · 2021
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  18. Science advances · 2020
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  20. 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

11 authors at 9 institutions in 7 countries.

Tanya M SmithDepartment of Human Evolutionary Biology, Harvard University, Cambridge, Massachusetts, United States of America.
Paul TafforeauESRF-The European Synchrotron, Grenoble, France.
Adeline Le CabecDepartment of Human Evolutionary Biology, Harvard University, Cambridge, Massachusetts, United States of America; ESRF-The European Synchrotron, Grenoble, France; Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
Anne BonninDepartment of Human Evolutionary Biology, Harvard University, Cambridge, Massachusetts, United States of America; ESRF-The European Synchrotron, Grenoble, France; Paul Scherrer Institut, Swiss Light Source, Villigen, Switzerland.
Alexandra HoussayeDepartment of Human Evolutionary Biology, Harvard University, Cambridge, Massachusetts, United States of America; ESRF-The European Synchrotron, Grenoble, France; Département Ecologie et Gestion de la Biodiversité, UMR 7179 CNRS, Muséum National d'Histoire Naturelle, Paris, France.
Joane PouechESRF-The European Synchrotron, Grenoble, France; Laboratoire de Géologie, UMR 5276 CNRS, Université Claude Bernard Lyon 1, Villeurbanne, France.
Jacopo Moggi-CecchiDipartimento di Biologia, Università di Firenze, Firenze, Italy.
Fredrick ManthiDepartment of Earth Sciences, National Museums of Kenya, Nairobi, Kenya.
Carol WardDepartment of Pathology and Anatomical Sciences, University of Missouri, Columbia, Missouri, United States of America.
Masrour MakaremiDepartment of Orthodontics, University of Bordeaux II, Bordeaux, France.
Colin G MenterCentre for Anthropological Research, University of Johannesburg, Johannesburg, South Africa.
Harvard University · USCentre National de la Recherche Scientifique · FREuropean Synchrotron Radiation Facility · FRNational Museums of Kenya · KEUniversité Claude Bernard Lyon 1 · FRUniversité de Bordeaux · FRUniversity of Florence · ITUniversity of Johannesburg · ZAUniversity of Missouri · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Until recently, our understanding of the evolution of human growth and development derived from studies of fossil juveniles that employed extant populations for both age determination and comparison. This circular approach has led to considerable debate about the human-like and ape-like affinities of fossil hominins. Teeth are invaluable for understanding maturation as age at death can be directly assessed from dental microstructure, and dental development has been shown to correlate with life history across primates broadly. We employ non-destructive synchrotron imaging to characterize incremental development, molar emergence, and age at death in more than 20 Australopithecus anamensis, Australopithecus africanus, Paranthropus robustus and South African early Homo juveniles. Long-period line periodicities range from at least 6-12 days (possibly 5-13 days), and do not support the hypothesis that australopiths have lower mean values than extant or fossil Homo. Crown formation times of australopith and early Homo postcanine teeth fall below or at the low end of extant human values; Paranthropus robustus dentitions have the shortest formation times. Pliocene and early Pleistocene hominins show remarkable variation, and previous reports of age at death that employ a narrow range of estimated long-period line periodicities, cuspal enamel thicknesses, or initiation ages are likely to be in error. New chronological ages for SK 62 and StW 151 are several months younger than previous histological estimates, while Sts 24 is more than one year older. Extant human standards overestimate age at death in hominins predating Homo sapiens, and should not be applied to other fossil taxa. We urge caution when inferring life history as aspects of dental development in Pliocene and early Pleistocene fossils are distinct from modern humans and African apes, and recent work has challenged the predictive power of primate-wide associations between hominoid first molar emergence and certain life history variables.

Indexed as

HominidaeToothAnimalsBiological EvolutionFossils

Identifiers

PMID25692765
PMCPMC4334485
OpenAlexW2115792168

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.