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Rocky Mountain Section–58th Annual Meeting (17–19 May 2006)

Paper No. 9
Presentation Time: 8:00 AM-11:40 AM

FOSSIL MAMMAL TRACKS OF THE OX VALLEY TUFF, WASHINGTON COUNTY, UTAH: A RECENTLY DISCOVERED ASSEMBLAGE OF MIOCENE TRACE FOSSILS


HUNT, Gary J., Department of Geosciences, Southern Utah Univ, 351 W. Center St, Cedar City, UT 84720 and LOHRENGEL II, C. Frederick, Department of Geosciences, Southern Utah University, 351 W. Center St, Cedar City, UT 84720, hunt.gary@gmail.com

The Miocene Age Ox Valley Tuff preserves the most diverse mammal track site thus far discovered in Utah. At least six ichnospecies of upper Tertiary mammals have been distinguished: cats, camels, horses, and rodents. At least two additional unidentified mammal ichnospecies are also present. This track site is important because its age is radiometrically bracketed between the 13.5 Ma (Ar39/Ar40) Ox Valley Tuff below, and the 11.8 Ma (Ar39/Ar40) Tuff of Honeycomb Rock above. Presence of these tracks extends the range of Miocene vertebrates in adjacent areas of southern California and Nevada into southwestern Utah. The tracks have been mapped utilizing ArcGis 9.1®.

Session No. 19--Booth# 9

T4. Council on Undergraduate Research (Posters) II
Friday, 19 May 2006: 8:00 AM-11:40 AM
Geological Society of America Abstracts with Programs. Vol. 38, No.6, p.38
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