Mountain building in the Andes, the longest continental mountain range on Earth, started in
the Late Cretaceous but was highly diachronous. Reconstructing the timing of surface uplift …

Recent re-examinations and new fossil findings have added significantly to the data
available for evaluating the evolutionary history of the monocotyledons. Integrating data from …

The current literature on marsupial phylogenetics includes numerous studies based on
analyses of morphological data with limited sampling of Recent and fossil taxa, and many …

Vegetation structure is a key determinant of ecosystems and ecosystem function, but
paleoecological techniques to quantify it are lacking. We present a method for reconstructing …

Since the late eighteenth century, fossils of bizarre extinct creatures have been described
from the Americas, revealing a previously unimagined chapter in the history of mammals …

This book summarizes major aspects of the evolution of South American metatherians,
including their epistemologic, phylogenetic, biogeographic, faunal, tectonic, paleoclimatic …

Abstract The North Patagonian fold-thrust belt (41°–44° S) is characterized by a low
topography, reduced crustal thickness and a broad lateral development determined by a …

A new Ar/Ar date on the Las Flores Tuff (Río Chico Group, Las Flores Fm., central Patagonia,
Argentina) yielded an age of 49.512±0.019 Ma. This tuff, which stratigraphically overlies the …

We describe Sarmientosaurus musacchioi gen. et sp. nov., a titanosaurian sauropod
dinosaur from the Upper Cretaceous (Cenomanian—Turonian) Lower Member of the Bajo …

Abstract The Southern Hemisphere may have provided biodiversity refugia after the
Cretaceous/Palaeogene (K/Pg) mass extinction. However, few extinction and recovery …