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1 July 2011 A New Xerinae (Rodentia, Sciuridae) from the Late Miocene of Toros-Menalla (Chad)
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Toumaï (Sahelanthropus tchadensis) is, to date, the oldest known hominine. Approximately 7 million years ago, it lived close to the northern shoreline of the paleo Lake Chad, which extended at that time 500 km north of its present location. Here, we describe a new xerine squirrel, Sabara oralacus, gen. et sp. nov., discovered near the site where Toumaï was unearthed. Study of associated fauna is essential to evaluate correctly the precise paleoenvironmental affinities of the first African hominines. The new squirrel displays a mosaic of dental and skull characters characterizing either the tribe Xerini or Protoxerini, which makes its taxonomic assignment at the tribe level difficult. From craniodental characters, we hypothesize that S. oralacus was a ground-dweller, digging burrows, probably with an ecological preference for forest to savannah environments associated with hard fruit-bearing trees.

© 2011 by the Society of Vertebrate Paleontology
Laurent Viriot, Pablo Pelaez-Campomanes, Patrick Vignaud, Likius Andossa, Hassan Taïsso MacKaye, and Michel Brunet "A New Xerinae (Rodentia, Sciuridae) from the Late Miocene of Toros-Menalla (Chad)," Journal of Vertebrate Paleontology 31(4), 844-848, (1 July 2011).
Received: 27 January 2011; Accepted: 1 April 2011; Published: 1 July 2011

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