Perutherium is monospecific genus of notoungulates from the Late Paleocene to Early Eocene Muñani Formation of Peru. The holotype consists of a fragment of a lower jaw with the posterior half of the first molar and the anterior half of the second molar.Grambast, L., Martinez, M., Mattaouer, M., and Thaler, L., 1967, Perutherium altiplanense, nov. gen., nov. sp., premier Mammifere mesozoique d'Amerique du Sud: Comptes rendus hebdomadaires des séances de lèAcadémie des Sciences de Paris, tomo 264, p. 707-710. A fragment of an upper molar from the same location may also belong to Perutherium.
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