The inner ear of mammals consists of the cochlea, which is involved with the sense of
hearing, and the vestibule and three semicircular canals, which are involved with the sense …

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 …

In the tradition of GG Simpson's classic work, Kenneth D. Rose's The Beginning of the Age of
Mammals analyzes the events that occurred directly before and after the mysterious KT …

Background Variation is a naturally occurring phenomenon that is observable at all levels of
morphology, from anatomical variations of DNA molecules to gross variations between …

We propose a phylogeny of all major groups of Mesozoic mammals based on phylogenetic
analyses of 46 taxa and 275 osteological and dental characters, using parsimony methods …

Rhombomylus is a gliroid mammal endemic to several early Eocene localities of central and
eastern Asia. It is best represented by a collection of numerous jaws and teeth, dozens of …

Alcidedorbignya inopinata is a basal pantodont (Placentalia, Mammalia) of small body size,
from the early Palaeocene of the Santa Lucia Formation at Tiupampa, Bolivia. Tiupampa is …

Morphological and stratigraphic evidence indicates that land-living mesonychian ungulates
are broadly ancestral to early amphibious and later aquatic cetaceans. The transition from …

Exquisitely preserved specimens of the Late Cretaceous eutherian Zalambdalestes recently
collected from the Djadokhta Formation (Early Campanian) of the Gobi Desert by the …

The coiled cochlea is a key evolutionary innovation of modern therian mammals. We report
that the Late Jurassic mammal Dryolestes, a relative to modern therians, has derived bony …