During the Paleocene-Eocene Thermal Maximum (PETM),∼ 56 Mya, thousands of
petagrams of carbon were released into the ocean-atmosphere system with attendant …

Earth's climate has experienced strong changes on timescales ranging from decades to
millions of years. As biodiversity has evolved under these circumstances, dependence on …

The sunflower family, Asteraceae, comprises 10% of all flowering plant species and displays
an incredible diversity of form. Asteraceae are clearly monophyletic, yet resolving …

Did the end-Cretaceous mass extinction event, by eliminating non-avian dinosaurs and most
of the existing fauna, trigger the evolutionary radiation of present-day mammals? Here we …

Mammals are the dominant large animals of today, occurring in virtually every environment.
This book is an account of the remarkable 320 million year long fossil record that documents …

• The sustained rate of increase over the past century in the combined radiative forcing from
the three well-mixed greenhouse gases carbon dioxide (CO2), methane (CH4), and nitrous …

Water plays a critical role in erosion and sediment transport and this relationship is most
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …

Abstract The Palaeocene/Eocene thermal maximum,∼ 55 million years ago, was a brief
period of widespread, extreme climatic warming,,, that was associated with massive …

Rapid global warming of 5° to 10° C during the Paleocene-Eocene Thermal Maximum
(PETM) coincided with major turnover in vertebrate faunas, but previous studies have found …

Competing hypotheses for the timing of the placental mammal radiation focus on whether
extant placental orders originated and diversified before or after the Cretaceous-Tertiary …