Following our traditional concept of Mammalia, and thus including a number of forms known
only by fossils of the Mesozoic, the earliest mammals are from the Late Triassic, a bit over …

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 …

Recent marsupials include about 280 species divided into 18 families and seven orders.
Approximately 200 species live in Australia/New Guinea. The remaining species inhabit …

Body size is of fundamental importance in understanding macroevolutionary patterns, both
for extant taxa and for those with a fossil record. In this paper we describe four different kinds …

An analysis of 79 fossil specimens, most comprising tiny, isolated upper and lower molars
recovered from Paleogene levels near Santa Rosa in the Peruvian Amazon, led to the …

An enormous amount of data is available on the structure and function of the mammalian
cochlea and mammalian hearing characteristics. Most of this knowledge is derived from …

The thick red mudstone unit that crops out at Laguna Umayo (Puno department, southern
Peru), here referred as LURMU, has yielded in different levels a fossil assemblage with …

Phylogenetic analyses based on morphological data support monophyly of Glires, but not a
link between Glires and zalambdalestids. Glires are more closely related to several Tertiary …

At least six different taxa are represented among the 21 specimens of mammals found at the
Early Cretaceous Flat Rocks site in southeastern Australia. Analysis of these fossils reveals …

Although hopping is a relatively rare mammalian gait, hopping mammals are common in
arid environments. Arid environments are open, with patchy resources, and the widespread …