Lithologic correlations between type areas of the White River Group in Nebraska and South
Dakota have resulted in a revised lithostratigraphy for the lower part of the White River …

Based on detailed lithologic correlations of the White River Group in Nebraska and South
Dakota, we revise and redescribe the Chadron Formation. We redescribe the upper two …

The White River and Arikaree Groups comprise an enormous volume of chiefly fine-grained
volcaniclastic sediments that accumulated in the North American midcontinent and adjacent …

The White River Group represents the fluvial, eolian, and lacustrine accumulation of
epiclastic and volcaniclastic sediments on the Great Plains during late Eocene to middle …

Major Department: Geological Sciences The use of skeletochronology in many reptile
groups has become a common method of incremental growth analysis over the last 20 …

These inventories were the first systematic assessment of vertebrate fossil resource on
Forest Service lands, and the first description of fossil resources in the USA at this level of …

Vertebrate fossil inventories of the Oglala National Grassland from 1991-1993 (see LaGarry
and Hunt, 1994, 1995) produced preliminary geologic maps of the White River Group in the …

Stratigraphy is the scientific study and classification of rock layers, including their age,
content, and distribution. The goal of these studies is to understand what the rocks and their …

Explanation of Geologic Map Units for use with Page 1 University of Nebraska - Lincoln
DigitalCommons(DUniversity of Nebraska - Lincoln Conservation and Survey Division Natural …

Figure 2. Correlation of the White River Group between Nebraska and South Dakota as
suggested by Schultz and Stout (1955). See Terry (this volume) for a revised correlation …