Complex patterns of genome evolution associated with the end-Cretaceous [Cretaceous-
Paleogene (K–Pg)] mass extinction limit our understanding of the early evolutionary history …

The Cretaceous ended when the Chicxulub asteroid struck the Yucatán platform, and all
deposits and landforms generated are earliest Paleocene in age. Drill core from the …

Abstract Late Cretaceous to Eocene Laramide basement–involved shortening fragmented
the Sevier and Mexican foreland basins. This resulted in a major drainage reorganization in …

The Cretaceous–Palaeogene (K–Pg) mass extinction was responsible for the destruction of
global ecosystems and loss of approximately three-quarters of species diversity 66 million …

Deep-sea macrobenthic body fossils are scarce due to the lack of deep-sea sedimentary
archives in onshore settings. Therefore, hypothesized migrations of shallow shelf taxa into …

We analyzed samples for paleomagnetism, 40 Ar/39 Ar detrital sanidine ages, and
mammalian fauna to produce a precise chronostratigraphic framework for the Upper …

Complex patterns of genome and life-history evolution associated with the end-Cretaceous
(K–Pg) mass extinction event limit our understanding of the early evolutionary history of …

Abstract The Cretaceous-Paleogene (K-Pg) contact interval is constrained by vertebrate
fossil sites at seven sites in the Tornillo Group and lies within an 80–100-m stratigraphic …

Fluvial strata of the Tornillo Group preserve a succession of Late Cretaceous, Paleocene,
and early Eocene continental faunas and floras and provide a record of the Laramide …

Morphological disparity and taxonomic richness are two major aspects of evolution used to
understand biodiversity changes. These metrics are often decoupled in time, particularly …