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Journal of Mammalian Evolution

, Volume 18, Issue 1, pp 57–69 | Cite as

Fossil Tragelaphini (Artiodactyla: Bovidae) from the Late Pliocene Hadar Formation, Afar Regional State, Ethiopia

  • Kaye E. Reed
  • Faysal Bibi
Original Paper

Abstract

The fossil tragelaphins from the late Pliocene of Hadar are described. These are Tragelaphus lockwoodi, new species, and Tragelaphus aff. T. nakuae. Tragelaphus lockwoodi bears long horns that define one complete spiral and that are mediolaterally compressed at the base. In these and other morphological characteristics it approaches the greater kudu, T. strepsiceros, and makes a good ancestral candidate for this living species. The Hadar T. aff. T. nakuae is similar to other specimens of this species from sites >2.8 Ma in East Africa and demonstrates well the major differences between the earlier and later representatives of this taxon. The sizes and morphological variation in the large Hadar T. aff. T. nakuae sample supports the idea that female individuals of this species were horned as is the case today in the elands and the bongo. Tragelaphus lockwoodi is present only in the lower beds of the Hadar Formation, and in small numbers, while T. aff. T. nakuae is recovered in relative abundance from throughout the ca. 3.4-ca. 2.9 Ma sequence.

Keywords

Tragelaphini Tragelaphus lockwoodi Tragelaphus nakuae Morphological variation 

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Institute of Human Origins, School of Human Evolution and Social ChangeArizona State UniversityTempeUSA
  2. 2.Institut de Paléoprimatologie et Paléontologie humaine: Evolution et PaléoenvironnementsCNRS UMR 6046-Université de Poitiers-UFR SFAPoitiersFrance

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