NATURAL HISTORY MUSEUM, LONDON / SCIENCE PHOTO LIBRARY NATURAL HISTORY MUSEUM, LONDON / SCIENCE PHOTO LIBRARY
Brontotherium ungulate, fossil skull. This gigantic browsing ungulate lived during the Oligocene. This specimen is from Nebraska, USA. This skull portion (the lower jaw is missing) measures 73 centimetres across. This specimen is part of the collections held at the Natural History Museum, London, UK.
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