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The environments of Australopithecus anamensis at Allia Bay, Kenya: A multiproxy analysis of early Pliocene Bovidae

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dc.contributor.authorDumouchel, Laurence
dc.contributor.authorBobe, Rene
dc.contributor.authorWynn, Jonathan G.
dc.contributor.authorBarr, W. Andrew
dc.date.accessioned2021-09-08T10:58:08Z
dc.date.available2021-09-08T10:58:08Z
dc.date.issued2021-02
dc.description.abstractAustralopithecus anamensis, among the earliest fully bipedal hominin species, lived in eastern Africa around 4 Ma. Much of what is currently known about the paleoecology of A. anamensis comes from the type locality, Kanapoi, Kenya. Here, we extend knowledge of the range of environments occupied by A. anamensis by presenting the first multiproxy paleoecological analysis focusing on Bovidae excavated from another important locality where A. anamensis was recovered, locality 261-1 (ca. 3.97 Ma) at Allia Bay, East Turkana, Kenya. Paleoenvironments are reconstructed using astragalar ecomorphology, mesowear, hypsodonty index, and oxygen and carbon isotopes from dental enamel. We compare our results to those obtained from Kanapoi. Our results show that the bovid community composition is similar between the two fossil assemblages. Allia Bay and Kanapoi bovid astragalar ecomorphology spans the spectrum of modern morphologies indicative of grassland, woodland, and even forest-adapted forms. Dietary reconstructions based on stable isotopes, mesowear, and hypsodonty reveal that these bovids' diet encompassed the full C-3 to C-4 dietary spectrum and overlap in the two data sets. Our results allow us to confidently extend our reconstructions of the paleoenvironments of A. anamensis at Kanapoi to Allia Bay, where this pivotal hominin species is associated with heterogeneous settings including habitats with varying degrees of tree cover, including grasslands, bushlands, and woodlands. (C) 2020 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipLeakey Foundation; Sigma Xi; Explorers Club Washington Group Inc.; Evolving Earth Foundation; Cosmos Club Foundation; Lewis N. Cotlow Fund
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1016/j.jhevol.2020.102928
dc.identifier.issn0047-2484
dc.identifier.urihttp://hdl.handle.net/10400.1/17038
dc.language.isoeng
dc.peerreviewedyes
dc.publisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
dc.subjectPaleoecology
dc.subjectEarly hominin
dc.subjectEastern Africa
dc.subjectStable isotopes
dc.subjectMesowear
dc.subjectEcomorphology
dc.subject.otherAnthropology; Evolutionary Biology
dc.titleThe environments of Australopithecus anamensis at Allia Bay, Kenya: A multiproxy analysis of early Pliocene Bovidae
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage102928
oaire.citation.titleJournal of Human Evolution
oaire.citation.volume151
person.familyNameBobe
person.givenNameRené
person.identifier.orcid0000-0001-9059-2203
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication61cfc780-975d-4eee-a87c-e69118aa5bb1
relation.isAuthorOfPublication.latestForDiscovery61cfc780-975d-4eee-a87c-e69118aa5bb1

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