Hyracotherium index (extinct)
Variant names:
 Eohippus index
 Orotherium index

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Found in one sample

United States: UCMP locality V77064 (Early Eocene)

See also Hyracotherium, Hyracotherium grangeri, Hyracotherium leporinum, Hyracotherium sandrae, Hyracotherium vasacciense