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- W2136531056 abstract "ABSTRACT We revise here the entire collection of Bovidae from the Pliocene Hadar Formation collected at Hadar and Ledi-Geraru, Lower Awash, Ethiopia. Some additions are provided to previously published descriptions, and other forms are described. The complete list includes 28 species, but is dominated by a new species of impala, Aepyceros datoadeni, a kob that we assign to Kobus oricornus, although it belongs to a type distinct from the Omo one, a lineage of alcelaphins that is poorly known elsewhere, Damalborea, and the bovin Ugandax. We also describe a new gazelle, Gazella harmonae, with very peculiar features, including long spiraled horn cores. Changes in the bovid fauna can be detected both within individual lineages, and in the composition of the assemblage. Impala and bovins far outnumber the reduncins in the lower part of the sequence (Basal and Sidi Hakoma members, from ca. 3.8 to 3.2 Ma), but relative abundances become more equal higher up. Biometric changes do occur in the Ugandax and Aepyceros lineages, but are not significant in other lineages. The major evolutionary events occur in the KH1 or KH1/KH2 transition, ca 3.1−3.0 Ma, with appearance of a third tragelaphin species, of a very small alcelaphin and of a large Aepyceros, and the likely disappearance of K. oricornus. ACKNOWLEDGMENTS We are grateful to Jara Hailemariam (Authority for Research and Conservation of Cultural Heritage), Mamitu Yilma (NME), Mohamed Ahamadin, Afar Regional State Representative, and the regional states for allowing us to work in the field and at the Museum. We thank E. Mbua, F. Kyalo (KNM), C. Argot, J. Lesur-Gebremariam (MNHN), P. Brewer, A. Currant (NHMUK), T. White, and Y. Haile-Selassie for providing access to collections in their care, C. Campisano for providing the map and sections of Figures 1 and 2, and the reviewers, F. Bibi and A. W. Gentry, for their most useful comments. We also thank all of the Afar people without whose cooperation this work would not be possible. Handling editor: Jessica Theodor" @default.
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- W2136531056 date "2012-01-01" @default.
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- W2136531056 title "Pliocene Bovidae (Mammalia) from the Hadar Formation of Hadar and Ledi-Geraru, Lower Awash, Ethiopia" @default.
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- W2136531056 doi "https://doi.org/10.1080/02724634.2012.632046" @default.
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