33 research outputs found

    Mio-Pliocene Faunal Exchanges and African Biogeography: The Record of Fossil Bovids

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    The development of the Ethiopian biogeographic realm since the late Miocene is here explored with the presentation and review of fossil evidence from eastern Africa. Prostrepsiceros cf. vinayaki and an unknown species of possible caprin affinity are described from the hominid-bearing Asa Koma and Kuseralee Members (∼5.7 and ∼5.2 Ma) of the Middle Awash, Ethiopia. The Middle Awash Prostrepsiceros cf. vinayaki constitutes the first record of this taxon from Africa, previously known from the Siwaliks and Arabia. The possible caprin joins a number of isolated records of caprin or caprin-like taxa recorded, but poorly understood, from the late Neogene of Africa. The identification of these two taxa from the Middle Awash prompts an overdue review of fossil bovids from the sub-Saharan African record that demonstrate Eurasian affinities, including the reduncin Kobus porrecticornis, and species of Tragoportax. The fossil bovid record provides evidence for greater biological continuity between Africa and Eurasia in the late Miocene and earliest Pliocene than is found later in time. In contrast, the early Pliocene (after 5 Ma) saw the loss of any significant proportions of Eurasian-related taxa, and the continental dominance of African-endemic taxa and lineages, a pattern that continues today

    Protragelaphus theodori n. sp. (Mammalia, Artiodactyla, Bovidae ) du Miocène de Macédoine (Grèce)

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    Situated in northern Greece, the Ditiko I locality has yielded numerous remains of an antelope belonging to the genus Protragelaphus, but differing from the classical species P. skouzesi from Pikermi and Maragha by a number of characters indicative of a more progressive level. We designate this species as P. theodori n. sp.Situé au nord de la Grèce, le gisement de Ditiko I a livré de nombreux restes d'une antilope appartenant au genre Protragelaphus, mais se différenciant de l'espèce classique P. skouzesi de Pikermi et de Maragha par un ensemble de caractères indiquant un stade plus évolué. Nous désignerons cette espèce sous le nom de P. theodori n. sp.Bouvrain G. Protragelaphus theodori n. sp. (Mammalia, Artiodactyla, Bovidae ) du Miocène de Macédoine (Grèce). In: Géologie Méditerranéenne. Tome 5, numéro 2, 1978. pp. 229-236
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