Abstract:
The primary purpose of the work described
here was to complete the study of a late Tertiary
sequence of faunas in the Northern Great Basin.
Shotwell (1968) reported on the late Miocene
faunas of the region. The subsequent
early, middle and late Pliocene faunas are described
here. Samples representing a diversity
of environmental situations were sought with
particular emphasis on the recovery of quantitatively
useful data for paleoecological studies.
Since many new fossil mammals were encountered
in both the Miocene and Pliocene excavations
it seemed best to describe the faunas first
to provide the new taxonomic information and
make it available rather than wait on the more
involved paleoecological analysis for which it
was originally collected.