| http://www.w3.org/ns/prov#value | - If their fossil record is a valid indicator of past abundance, Hyracodon (Hyracodontidae) and Subhyracodon (Rhinocerotidae) were the most common large (> 100 kg) herbivores (horses and oreodonts being medium-sized) of the Orellan in the central Great Plains region.
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