ABSTRACT The 'Age of Mammals' began in the Paleocene epoch, the 10 million year
interval immediately following the Cretaceous–Palaeogene mass extinction. The apparently …

The timing of the placental mammal radiation has been the focus of debate over the efficacy
of competing methods for establishing evolutionary timescales. Molecular clock analyses …

Reconstructing the tempo at which biodiversity arose is a fundamental goal of evolutionary
biologists, yet the relative merits of evolutionary-rate estimates are debated based on …

Abstract The recently extinct (ca. 1768) Steller's sea cow (Hydrodamalis gigas) was a large,
edentulous North Pacific sirenian. The phylogenetic affinities of this taxon to other members …

Adaptive radiations are hypothesized as a generating mechanism for much of the
morphological diversity of extant species. 1–7 The Cenozoic radiation of placental …

The first Cretaceous mammals described from India were recovered from the Naskal locality,
on the southeastern edge of the Deccan Traps Volcanic Province (DTVP), where it is …

All materials, including upper and lower jaw fragments and isolated teeth, of two closely
related species of the stem placental mammal Prokennalestes, P. minor Kielan-Jaworowska …

The Picrodontidae from the middle Palaeocene of North America are enigmatic placental
mammals that were allied with various mammalian groups but are generally now considered …

Mammals exhibit vast ecological diversity, including a panoply of locomotor behaviours. The
foundations of this diversity were established in the Mesozoic, but it was only after the end …

Nyctitheres are a diverse Paleogene group of insectivorous mammals from Asia, North
America, and Europe. Known mostly from their relatively unspecialized tribosphenic …