Reguero, Marcelo Alfredo Eocene archaeohyracids (Mammalia: Notoungulata: Hegetotheria) from the Puna, northwest Argentina - Oxford Elsevier Science September 2008 - pp. 225-233 ilus. ISSN: 0895-9811 Subjects--Topical Terms: ARCHAEOHYRACIDAEEOCENOMAMMALIANOTOUNGULATA Subjects--Geographic Terms: ARGENTINAJUJUYPUNASALTA