Temporal changes in the diversity of euselachians (eg, sharks and rays) across the
Cretaceous-Paleogene (K-Pg) boundary are not well understood, particularly from …

The fossil-rich deposits of the latest Maastrichtian Frenchman Formation (66Ma) of
Saskatchewan, Canada, contain a complete, continuous record of terrestrial vertebrate …

Matrix surrounding a dermochelyid carapace and two cetacean skulls recovered from the
Givhans Ferry Member of the Ashley Formation (lower Oligocene, Rupelian Stage) in South …

ABSTRACT The Bridger Formation of the early middle Eocene of Wyoming has been
studied for its sedimentology, paleobotany, herpetofauna, and mammalian fauna. Although …

Although it represents but one geographic data point, the uppermost Maastrichtian Hell
Creek Formation (HCF), exposed in the upper Great Plains of the North American craton …

ABSTRACT The Clayton Limestone of the (Paleocene) Midway Group in southwestern
Arkansas preserves one of the oldest osteichthyan Cenozoic assemblages yet reported from …

Sharks (Selachimorpha) are iconic marine predators that have survived multiple mass
extinctions over geologic time. Their prolific fossil record is represented mainly by isolated …

Numerous isolated euselachian teeth were recovered from the early Turonian Kaskapau
Formation situated in northwestern Alberta, Canada. This high palaeolatitude assemblage …

Teleost fishes are an important element of non-marine aquatic communities of the Late
Cretaceous of North America, but understanding their diversity and distribution has been …

Abstract The Cretaceous-Paleogene boundary (KPB) marks a mass extinction resulting in
global biotic turnover. Exposures of the Hell Creek Formation in northeastern Montana …