ABSTRACT The La Venta deposits (Colombia) record one of the most fossil-rich regions in
tropical South America and offers an exceptional opportunity to study the effect of the …

Over the past four years, we have conducted extensive fieldwork in the Cocinetas Basin of
La Guajira Peninsula, including geological mapping, stratigraphic descriptions, and …

ABSTRACT The middle Miocene Konzentrat-Lagerstätte of the La Venta site recorded in the
Honda Group contains invaluable information on the biotic response to the climatic changes …

This is a description of the well-known Colombian La Venta fauna. La Venta is the most
detailed tropical faunal assemblage known for South America. Although it is located on the …

Here we present a review of paleontology in Ecuador for the last three centuries, including
the most significant studies, localities and their fossil record. This review is focused on four …

Recent work in the central Andean Main Range of Chile near Laguna del Laja (∼ 37.5° S,
71° W) has produced the first mammal fossils for the region. Fossils, locally abundant and …

A new mammalian assemblage from the Late Miocene Palo Pintado Formation in
Northwestern Argentina is described. Specimens were exhumed from the lower levels of the …

In general the geology of paleontological sites in Venezuela is poorly known. With the
purpose of improving this knowledge we describe the geology of the Castillo Formation …

The origin and development of Neotropical biomes are central to our understanding of
extant ecosystems and our ability to predict their future. During the Cretaceous, biomass of …

Vertebrate Paleontology in Argentina, particularly regarding mammals, has greatly
developed since the late XIX century, and has provided us with a fairly complete view of …