Whereas carbon isotope ratios of marine carbonates are well characterized through the
Phanerozoic, the carbon isotope ratios of terrestrial plant organic matter (δ 13 C p) are less …

Although intensified work on the volcaniclastic-rich sediments of the fossil-bearing
Mussentuchit Member (uppermost Cedar Mountain Formation, Utah) has provided a refined …

Detangling the pace and structure of biotic turnover between the late Early and early Late
Cretaceous within the Western Interior of North America requires refined stratigraphic …

This paper presents breakthroughs in the chronostratigraphy of the heretofore poorly
constrained Yellow Cat Member of the Cedar Mountain Formation, which is an important …

The terrestrial Lower Cretaceous Cedar Mountain Formation, Utah, is a critical archive of
paleoclimate, tectonics, and vertebrate ecology and evolution. Early Cretaceous carbon …

Even after all this time, our understanding of the modern and ancient carbon cycle is still
incomplete. Stable carbon isotopes are an extremely useful tool from which to monitor and …

Abstract The Lower Cretaceous rocks of Utah preserve the origin of a multitude of dinosaur
taxa, spread of angiosperms on the North American continent, and evolution of marsupial …

Previously published anomalous whole-rock stable isotopic values from the Poison Strip
Sandstone Member of the Cretaceous Cedar Mountain Formation (CMF) of eastern Utah are …

Utahraptor is the largest member of the dinosaur family DromaeosauriDae and represents
one of the most remarkable discoveries in recent decades. In the original description, the …