Additional specimens of Hyracoidea (Mammalia) from the Early and Middle Miocene of Kenya |
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| Institution: | 1. Department of Geosciences, University of Wisconsin-Milwaukee, 3209 N. Maryland Ave., Milwaukee, WI 53211, USA;2. Department of Geological Sciences, Indiana University, 1001 E 10th Street, Bloomington, IN 47405, USA;3. The Stone Age Institute, 1392 W. Dittemore Rd., Gosport, IN 47433, USA;4. Institute of Archaeology, University College London, 31-34, Gordon Square, WC1H 0PY London, United Kingdom;5. Department of Anthropology, Colorado State University, 1787 Campus Delivery, Fort Collins, CO 80523, USA |
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| Abstract: | We describe unpublished material of the poorly known hyracoid, Brachyhyrax aequatorialis from the Early Miocene of Songhor and Koru, Kenya, on the basis of specimens stored in the Community Museums of Kenya, the National Museums of Kenya and the Natural History Museum, London. As a result, we added 17 specimens to the hypodigm of this species which was previously known from only seven specimens. In addition, we describe further material of another hyracoid, Afrohyrax championi, from the Early Miocene of Mfwangano and the Middle Miocene of Kipsaraman. The chronological distributions of the two hyracoids do not overlap. Brachyhyrax appears to have lived in forest environments, a suggestion supported by its brachyodont dentition and the associated molluscan fauna, whereas Afrohyrax seems to have lived in more open wooded habitats which agree with its slightly more hypsodont dentition and the cursorial postcranial skeleton as well as with the land snails that occur with it. |
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