Marsupials and their fossil relatives, which collectively comprise Metatheria, have been of
scientific interest for centuries, with many aspects of their evolution and systematics subject …

The current literature on marsupial phylogenetics includes numerous studies based on
analyses of morphological data with limited sampling of Recent and fossil taxa, and many …

Didelphidae is the largest New World radiation of marsupials, and is mostly represented by
arboreal, small-to medium-sized taxa that inhabit tropical and/or subtropical forests. The …

Opossums are the most diverse and ecologically important group of New World marsupials,
although only the Virginia opossum is familiar to North American residents. In fact, many …

As evolutionary biologists, we live in exciting and promising times. The material basis of our
science is growing at an unprecedented rate; fossils preserving structures we thought …

The skull of the polydolopimorphian marsupialiform Epidolops ameghinoi is described in
detail for the first time, based on a single well-preserved cranium and associated left and …

Abstract “Sparassocynids” are small, carnivorously-adapted marsupials known from the late
Miocene and Pliocene of South America, thought to be relatives of living didelphid …

Marsupials or metatherians are a group of mammals that are distinct in giving birth to young
at early stages of development and in having a prolonged investment in lactation. The group …

Currently, marsupials (modern members of the Metatheria clade) are widely distributed in
tropical and subtropical areas of South America, but poorly represented in the fossil record …

Morphological cladograms of vertebrates are often inferred from greater numbers of
characters describing the skull and teeth than from postcranial characters. This is either …