Chapter

Paleontology and Geology of Laetoli: Human Evolution in Context

Part of the series Vertebrate Paleobiology and Paleoanthropology Series pp 295-326

Date:

Equidae

  • Miranda Armour-CheluAffiliated withDepartment of Anatomy, Laboratory of Evolutionary Biology, College of Medicine, Howard University Email author 
  • , Raymond L. BernorAffiliated withDepartment of Anatomy, Laboratory of Evolutionary Biology, College of Medicine, Howard University

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Abstract

Equid teeth and postcrania from the Laetolil and Upper Ndolanya Beds are described and compared with other hipparion assemblages from East and South African Plio-Pleistocene localities. The hipparion from the Laetolil Beds is morphologically similar to Eurygnathohippus hasumense from Hadar, although of slightly smaller dimensions, and is referred to Eurygnathohippus aff. hasumense. The hipparion from the Upper Ndolanya Beds closely resembles the advanced hypsodont form found at Olduvai Gorge (Bed I-IV), and is referred to Eurynathohippus aff. cornelianus.

Keywords

Eurygnathohippus hasumense Eurygnathohippus cornelianus Hipparion Equid Ectostylid Metacarpal III Metatarsal III Phalanx Pliocene Laetoli Olduvai Gorge