After the formation of the Isthmus of Panama, about 2-5 Ma, a massive interchange between
the previously separated mammalian faunas of South and North America took place …

A predominant viewpoint on the dynamics of the Plio-Pleistocene exchange of mammalian
taxa between the Americas invokes competitive displacement, ie, the notion that North …

Knowledge of the fossil mammals from the Pampean Region of Argentina has greatly
increased in recent years. To analyze the patterns of change in regional climates and …

Some 35 genera of mammals became extinct in North America as the Pleistocene came to
an end. Current attempts to explain those extinctions generally assume that all of the losses …

The last important–and possibly the most spectacular–turnover in South American mammal
history occurred around the Pleistocene-Holocene boundary, when 100% of megamam mal …

The late Pleistocene witnessed the extinction of 35 genera of North American mammals. The
last appearance dates of 16 of these genera securely fall between 12,000 and 10,000 …

SHORT PAPER The Timing of Late Pleistocene Mammalian Extinctions in North America Page 1
QUATERNARY RESEARCH 19, 130- 135 (1983) SHORT PAPER The Timing of Late Pleistocene …

Toward the end of the Pleistocene, North America lost some 35 genera of mammals. It has
long been assumed that all or virtually all of the extinctions occurred between 12,000 and …

The end‐Cretaceous mass extinction ranks among the most severe extinctions of all time;
however, patterns of extinction and recovery remain incompletely understood. In particular, it …

During the latest Cretaceous and the Paleocene in western North America, disappearance
rates for mammalian genera track appearance rates, both reaching their peak in the early …