The late Miocene mammalian fauna of Chorora, Awash basin, Ethiopia: systematics, biochronology and 40K-40Ar ages of the associated volcanics

Abstract : New whole-rock 40K-40Ar ages on lava flows bracketing the Chorora Fm, Ethiopia, confirm that its Hipparion-bearing sediments must be in the 10-11 Ma time-range. The large Mammal fauna includes 10 species. They point to an early age within the Late Miocene, although not unambiguously near its lower limit. It lends support to the isochronous hypothesis of the "Hipparion datum".
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Denis Geraads, Zeresenay Alemseged, Hervé Bellon. The late Miocene mammalian fauna of Chorora, Awash basin, Ethiopia: systematics, biochronology and 40K-40Ar ages of the associated volcanics. Tertiary Research, 2002, 21 (1-4), pp.113-122. ⟨halshs-00009761⟩

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