Evidence map›Paper›PMID 34873047›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Integrative geochronology calibrates the Middle and Late Stone Ages of Ethiopia's Afar Rift.

Elizabeth M Niespolo, Giday WoldeGabriel, William K Hart, Paul R Renne, Warren D Sharp, M Steven Shackley, Stanley H Ambrose, Berhane Asfaw, Yonas Beyene, Marianne F Brasil and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
12.9field-weighted citation impact, top 2% 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

3 citing papers in PubMed, 13 citations in OpenAlex.

  1. Halibee member archaeology: Middle Stone Age environment, technology, and postmortem modifications.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Article
  3. Building better biochronology: New fossils andProceedings of the National Academy of Sciences of the United States of America · 2025
    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

13 authors at 10 institutions in 4 countries.

Elizabeth M NiespoloDepartment of Earth & Planetary Science, University of California, Berkeley, CA 94720; niespolo@caltech.edu timwhite@berkeley.edu.ORCID 0000-0002-9537-3031
Giday WoldeGabrielPrivate address, Santa Fe, NM 87594.
William K HartDepartment of Geology & Environmental Earth Science, Miami University, Oxford, OH 45056.ORCID 0000-0002-7309-5560
Paul R RenneDepartment of Earth & Planetary Science, University of California, Berkeley, CA 94720.ORCID 0000-0003-1769-5235
Warren D SharpBerkeley Geochronology Center, Berkeley, CA 94709.ORCID 0000-0002-6340-8690
M Steven ShackleyGeoarchaeological XRF Laboratory, Department of Anthropology, University of California, Berkeley, CA 94720.ORCID 0000-0002-4122-0427
Stanley H AmbroseDepartment of Anthropology, University of Illinois at Urbana-Champaign, Urbana, IL 61801.ORCID 0000-0002-8785-0512
Berhane AsfawRift Valley Research Service, Addis Ababa, Ethiopia.
Yonas BeyeneFrench Center for Ethiopian Studies, Addis Ababa, Ethiopia.
Marianne F BrasilBerkeley Geochronology Center, Berkeley, CA 94709.ORCID 0000-0002-5089-2161
Joshua P CarlsonHuman Evolution Research Center, University of California, Berkeley, CA 94720.
Yonatan SahleHuman Evolution Research Institute, Department of Archaeology, University of Cape Town, Rondebosch 7701, South Africa.
Tim D WhiteHuman Evolution Research Center, University of California, Berkeley, CA 94720; niespolo@caltech.edu timwhite@berkeley.edu.ORCID 0000-0003-1266-7489
Berkeley Geochronology Center · USPlanetary Science Institute · USUniversity of California, Berkeley · USCentre Français des Études Éthiopiennes · ETCentro Nacional de Investigación sobre la Evolución Humana · ESMiami University · USRift Valley University · ETSanta Fe Institute · USUniversity of Cape Town · ZAUniversity of Illinois Urbana-Champaign · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Halibee member of the Upper Dawaitoli Formation of Ethiopia's Middle Awash study area features a wealth of Middle and Later Stone Age (MSA and LSA) paleoanthropological resources in a succession of Pleistocene sediments. We introduce these artifacts and fossils, and determine their chronostratigraphic placement via a combination of established radioisotopic methods and a recently developed dating method applied to ostrich eggshell (OES). We apply the recently developed

Indexed as

EthiopiageochronologyLate Stone AgeMiddle AwashMiddle Stone Age

Identifiers

PMID34873047
PMCPMC8685921
OpenAlexW4200542162

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.