Title:Chaetophractus vellerosus (Mammalia: Dasypodidae) in the Ensenadan (Early - Middle Pleistocene) of the southeastern Pampean region (Argentina) : Paleozoogeographical and paleoclimatic aspects
Title:Cambios en la riqueza taxonómica y en las tasas de primera y última aparición de los Proterotheriidae (Mammalia, Litopterna) durante el Cenozoico / Changes in the taxonomic richness and in the exchange rates of the first and last appearance of the Proterotheriidae (Mammalia, Litopterna) during the Cenozoic period