Author Affiliations +
Thomas E. Yancey,1 Ellen E. Strong,2 Rex A. Hanger3
1Department of Geology, Texas A&M University, College Station, Texas 77843;nh3115, tyancey@tamu.edu
2Department of Biological Sciences, George Washington University, Washington, DC 20052, eestrong@gwis2.circ.gwu.edu
3Department of Geology, University of Wisconsin, Madison, Wisconsin 53706, rahpaleo@geology.wisc.edu