Equidae from the Baynunah Formation

We report 87 specimens of hipparionine horse from the Baynunah Formation, United Arab Emirates. The dominant species is referred to “Hipparion” abudhabiense. abudhabiense represented by mandibles, mandibular and maxillary cheek teeth a variety postcranial bones, some which are complete. Formation early wear suggest that was higher crowned than Central European Hippotherium primigenium with maximum crown height 60–65 mm. AUH 270, type mandible characterized as having short, broad symphysis horizontally aligned incisors. While previous view this suggested an evolutionary relationship Greek Hipparion dietrichi, fragmentary but otherwise elongate metacarpal III (AUH 1499) exhibits close similarity AkkasdagiAkkasdagi (Akka?da??) (7.1 Ma) CaltaCalta (Çalta) (4.0 “Plesiohipparion” cf. longipes. There rare, smaller hipparion compares favorably in its size morphology Iranian members Cremohipparion matthewi-nikosi lineage lineage. fauna supports correlation ca. 7 Ma, potential biogeographic affinity Greece, Turkey, Iran possibly Northern Kazakhstan.