We describe a new interatheriid notoungulate, Juchuysillu arenalesensis gen. et sp. nov.,
based on six partial upper and lower dentitions from the early to middle Miocene Nazareno …

Since 2006, new field studies at the late Oligocene site of Quebrada Fiera (Mendoza,
Argentina) have increased the previous faunal record from these levels that are presently …

Hegetotheriidae are one of the most derived families of the Order Notoungulata. It is
composed of two subfamilies: Hegetotheriinae, which resolves as paraphyletic in most …

Griphotherion peiranoi, a new genus and species of notoungulate from northwestern
Argentina, is presented here. The material studied consists of a nearly complete skull and …

In this work, we describe two new species of proterotheriid litopterns, Olisanophus
riorosarioensis gen. et sp. nov. and Olisanophus akilachuta sp. nov. from the middle …

Recent field work at the Deseadan (late Oligocene) locality of Quebrada Fiera (Mendoza
Province, Argentina) has provided new fossil remains that greatly increased the faunal …

“Immersive... bracingly ambitious... rewinds the story of life on Earth—from the mammoth
steppe of the last Ice Age to the dawn of multicellular creatures over 500 million years ago.” …

Abstract The Cura-Mallín Formation consists of a series of upper Oligocene to Upper
Miocene volcanic and sedimentary rocks deposited in continental settings that crop out in …

Herein we describe a new species of early diverging mesotheriid notoungulate from the late
Oligocene of Moquegua, Peru. This taxon, Trachytherus ramirezi sp. nov., is distinctive in …

An anatomical and taxonomic analysis of the mammalian record in the locality of La Poma in
Salta Province, Argentina, is here presented. This record consists in two specimens …