To better understand the effect of the Paleocene‐Eocene Thermal Maximum (PETM) on
continental ecosystems, we studied 40 new palynological samples from the Bighorn Basin …

Galecyon is one of the first appearing hyaenodontid creodonts, as well as one of the most
poorly known. New specimens greatly improve our understanding of the morphology of this …

The Heteromyidae (pocket mice and kangaroo rats) are a group of extant small rodents
abundant in western North America, as well as in fossil assemblages over the last 20 million …

Extinction rates have risen to perhaps 10 4 the background rate. Much of this increase is due
to projected influences of habitat loss on regions of the world with tropical moist forest. This …

“Hyperthermals” are past intervals of geologically rapid global warming that provide the
opportunity to study the effects of climate change on existing faunas over thousands of …

A new hesperornithiform bird specimen from Devon Island in the Canadian High Arctic is
represented by three cervical vertebrae and is assigned to Canadaga arctica. The new …

Abstract The Bighorn Basin of northwestern Wyoming is well known for its extensive and
richly fossiliferous Paleocene and Eocene alluvial deposits, which have preserved events in …

This project investigated the pattern of mammalian faunal evolution in the early Eocene
Willwood Formation of the central Bighorn Basin, Wyoming. Preliminary analyses included …

The early Eocene of the southern Bighorn Basin, Wyoming, is notable for its nearly
continuous record of mammalian fossils. Microsyopinae (? Primates) is one of several …

Abstract Objectives The Willwood Formation of the southern Bighorn Basin, Wyoming is a
fluvial rock sequence that spans approximately 3 million years of early Eocene time. It has …