More than 25 new specimens of Teilhardina brandti, one of the oldest known euprimates,
are reported from earliest Eocene strata of the southern Bighorn Basin, Wyoming. The new …

Several well-preserved jaws of the rare North American omomyid primate Steinius
vespertinus, including the first known antemolar dentitions, have been discovered in 1989 …

Two dentaries from the Wasatchian Willwood Formation of the Bighorn Basin, Wyoming,
constitute the first evidence of the anterior teeth of the omomyid Arapahovius advena …

A new species of early Eocene omomyid, Teilhardina brandti, is described, based on an
isolated but well preserved M,. The specimen comes from basal Wasatchian zone Wa-0 in …

Two new species of washakiin omomyids occur in deposits of early Bridgerian age.
Shoshonius bowni, sp. nov., from the Aycross Formation, Absaroka Range, Wyoming, differs …

True primates appeared suddenly on all three northern continents during the 100,000-yr-
duration Paleocene–Eocene Thermal Maximum at the beginning of the Eocene,≈ 55.5 mya …

ERNEST L. LUNDELIUS JR.,*, 1 VAUGHN M. BRYANT, 2 ROLFE MANDEL, 3 KENNETH J.
THIES, 4 and ALSTON THOMS2; 1Jackson School of Geosciences, University of Texas at …

Recent paleontological collecting in the Washakie Basin, southcentral Wyoming, has
resulted in the recovery of over 100 specimens of omomyid primates from the lower Eocene …

The Omomyidae, along with the Adapidae, are the earliest true primates. Omomyids are
known from Eocene and lowest Oligocene deposits in North America, and Europe, and …

Seven species of aplodontid rodents are recognized from the Orellan, four from the
Whitneyan, and one from both horizons of Nebraska. Three new genera are recognized …