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Equidae (Mammalia, Perissodactyla) from the late Miocene of Akkașdağı, Turkey

George D. KOUFOS & Theodora D. VLACHOU

en Geodiversitas 27 (4) - Pages 633-705

Published on 31 December 2005

This article is a part of the thematic issue Geology, mammals and environments at Akkașdağı, late Miocene of Central Anatolia

Akkas.dag˘ı is a new vertebrate locality from Central Anatolia, Turkey, dated to middle Turolian (MN 12). Rich bone pockets are included in the upper horizon of a tuff layer dated to 7.1 Ma. Hipparion remains are particularly abundant. On the basis of skeletons, four different species were recognized in Akkas.dag˘ı hipparions sample: 1) H. dietrichi, medium- to large-sized with long and slender limb bones; 2) H. moldavicum, small- to medium-sized with long and slender limb bones; 3) H. brachypus, large-sized with short and robust limb bones; and 4) H. cf. longipes, very large-sized form with very long and slender limb bones. The phylogenetic relationship of the Akkas.dag˘ı hipparions with other Eurasian late Miocene hipparions is discussed, and we also analyse biostratigraphic and palaeobiogeographic distribution of the determined species in correlation with the available biochronologic, radiometric and magnetostratigraphic data.


Keywords:

Mammalia, Equidae, Hipparion, late Miocene, Akkașdağı, Central Anatolia, Turkey, biochronology, biostratigraphy

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