The spectacular fossil fauna and flora preserved in the Upper Cretaceous terrestrial strata of
North America's Western Interior Basin record an exceptional peak in the diversification of …

Oxygen isotopes in tooth enamel carbonate are commonly measured in studies of ecology,
paleoclimate, and provenance; however, methods for sample pretreatment and mass …

The fossil record provides the only direct evidence of temporal trends in biodiversity over
evolutionary timescales. Studies of biodiversity using the fossil record are, however, largely …

Terrestrial strata of the Judith River–Belly River wedge, widely exposed in the plains of north-
central Montana, southern Alberta, and southwestern Saskatchewan, were pivotal in early …

Previous biogeographic studies of late Cretaceous (late Campanian) vertebrate faunas in
the Western Interior Basin (WIB) of North America have suggested the presence of faunal …

During the Late Cretaceous, western North America was characterized by a close
geographic association between the Sevier highlands and the Western Interior Seaway. In …

Abstract The late Campanian–Maastrichtian Liscomb Bonebed is the richest source of
dinosaur remains thus far documented in the polar regions. This bed is formally defined …

Abstract The Cretaceous paleocommunities of North America preserve a rich record of
biodiversity that suggests many species occupied narrow biogeographic ranges in …

Dinosaur bones from the Upper Jurassic Shishugou Formation near Qitai in the Junggar
Basin, NW China, show black manganese oxide and light quartz infillings in the bone pore …

Despite long-standing significance in the annals of North American stratigraphy and
paleontology, key aspects of the Upper Cretaceous Judith River Formation remain poorly …