Cetaceans form one of the most unique groups in the evolutionary history of mammals. They
have returned to the sea and modified their tail as an efficient means of locomotion. As they …

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 …

ABSTRACT The Section of Mammals, Carnegie Museum of Natural History houses 54
partial and complete skulls of the short-tailed opossum Monodelphis. Described in detail …

An overview of the literature on the chondrocranium of marsupial mammals reveals a
relative conservatism in shape and structures. We document the histological cranial …

Analyses of anatomical and DNA sequence data run on a parallel supercomputer that
include fossil taxa support the inclusion of tenrecs and golden moles in the Afrotheria, an …

The anterior end of the mammalian face is characteristically composed of a semimotile nose,
not the upper jaw as in other tetrapods. Thus, the therian nose is covered ventrolaterally by …

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 …

We report a new Jurassic docodontan mammaliaform found in China that is preserved with
the hyoid bones. Its basihyal, ceratohyal, epihyal, and thyrohyal bones have mobile joints …

The evolution of the mammalian middle ear is thought to provide an example of
'recapitulation'—the theory that the present embryological development of a species reflects …

Phylogenetic relationships among marsupial taxa have proven to be more complex than the
simple grouping of species by continent. Recent marsupials are distributed across the New …