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Northeastern (46th Annual) and North-Central (45th Annual) Joint Meeting (20–22 March 2011)

Paper No. 6
Presentation Time: 3:00 PM

BIOSTRATIGRAPHIC SIGNIFICANCE OF THE NONMARINE OSTRACODA FROM THE LATE CARBONIFEROUS AND EARLY PERMIAN APPALACHIAN BASIN, UNITED STATES


TIBERT, Neil E., Department of Earth & Environmental Sciences, University of Mary Washington, Jepson Science Center, 1301 College Avenue, Fredericksburg, VA 22401 and DEWEY, C.P., Department of Geosciences, Mississippi State University, Starkville, MS 39759, ntibert@umw.edu

Late Carboniferous and early Permian Ostracoda from the Appalachian Basin include nonmarine genera that reveal taxonomically valuable information. Coal and mudrock beds from Pennsylvania and West Virginia yielded well preserved specimens of Paleodarwinula hollandi (Scott 1944), Whipplella cuneiformis Holland 1934, Gutschickia deltoidea (Holland 1934), G. ninevehensis (Holland 1934), and Hildboldtina magnitata (Holland 1934). Previously undocumented adductor muscle scars, anterior spines, and external patterns of reticulation confirm that these nonmarine genera are distinct and suggest potential connections to the Darwinulocopina and Metacopina. Additionally, the stratigraphic range of the nonmarine assemblage highlights the potential biostratigraphic zonation for Carboniferous and Permian deposits in North America.

Session No. 43

T26. The Origin of the Dunkard Group, the Youngest Paleozoic Strata in the Central Appalachian Basin
Monday, 21 March 2011: 1:30 PM-5:30 PM
Conference A (Omni William Penn Hotel)
Geological Society of America Abstracts with Programs. Vol. 43, No. 1, p.125
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