We review the Neogene geologic history of lowland Amazonia in an attempt to focus
attention on areas of agreement, as well as areas in dispute, in this research arena. We …

The vertebrate faunal assemblage associated with the Neogene deposits in the Acre region
(southwestern Amazonia) is secured as Late Miocene on the basis of a correlation with the …

The Laventan Quebrada Honda Fauna of southern Bolivia is one of the best sampled middle
Miocene South American faunas. The present study describes the toxodontid, interatheriid …

Abstract The Middle Miocene has been identified as a time of great diversification in modern
lineages now distributed in tropical South America, and when basic archetypal traits defining …

Phoberomys is reported to be the largest rodent that ever existed, although it has been
known only from isolated teeth and fragmentary postcranial bones. An exceptionally …

The discovery of an exceptionally well-preserved skull permits the description of the new
South American fossil species of the rodent, Josephoartigasia monesi sp. nov.(family …

Body size is correlated with virtually every morphological, physiological, and life-history trait
in mammal species. As a consequence, estimates of body size of fossil species are often …

The fossil-bearing stratigraphic sections of the Solimões Formation (southwestern Brazilian
Amazonia) are exposed mainly along the Juruá, Purus, and Acre rivers, and in road cuts …

Los roedores conforman el Orden más numeroso de mamíferos vivientes. Dentro de este
grupo, los caviomorfos representan un clado eminentemente sudamericano con una …

The fossiliferous beds of the Solimões Formation, western Brazilian Amazon have yielded
several vertebrate fossils that are key to understand the evolution of Neotropical biotas …