Dictionary of Human Evolution and Biology

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Uintasorex Parvulus Matthew, 1909

Archaic mammal of the middle and late Eocene of the Rocky Mountain region of North America, belonging to the plesiadapiform family Microsyopidae; monotypic; some authorities assign this genus to the order Insectivora. Maxillary dental formula uncertain, mandibular formula Estimated body mass around 45 g. Small body size and dentition suggests insectivory.

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