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 …

In order to better constrain the age and provenance of the Upper Cretaceous Wahweap and
Kaiparowits formations in southern Utah, U-Pb SHRIMP ages were obtained for detrital …

Laramide basement blocks of the US Rocky Mountain Province have long been considered
the sediment source of the Paleocene–Eocene Wilcox Group, implying that large-scale …

[Extract] Updated Sedimentological and paleontological data support earlier assertions that
the Kaiparowits Formation was deposited in a wet alluvial to coastal plain setting with an …

Recent work in the Campanian Aguja Formation of Big Bend, Texas, has resulted in the
recovery of two frontoparietal domes from a new genus of pachycephalosaur. Texacephale …

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

A structurally complex succession of basaltic pyroclastic deposits produced from
overlap** phreatomagmatic volcanoes occurs within Upper Cretaceous floodplain …

We propose a methodology to determine the initiation and reactivation of fracturing during
the geological history of a sedimentary basin. The data input is derived from the Eagle Ford …

Abstract Although the Aguja Formation (West Texas, southwestern USA) and its fossil
vertebrate fauna have been known for over a century, its basic stratigraphic requisites (type …

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