Peter P. McLaughlin Jr., of the Delaware Geological Survey, presented two papers at the 2015 annual meeting of the Geological Society of America (GSA), November 1-4, Baltimore. A presentation in the general program," Synthesis of the Palynostratigraphy of the Potomac Formation in the Middle Atlantic Region of the United States and Implications for Aquifer Correlation” was coauthored with Jesse D. Thornburg and Kenneth G. Miller (Rutgers University), Heather Quinn (Maryland Geological Survey), and Gilbert J. Brenner (SUNY-New Paltz). A presentation in a special Three-Dimensional Geological Mapping Workshop, “Attributing Groundwater Withdrawals to Aquifers Using 3-D Geological Maps In Delaware, USA,” was co-authored by Jaime L. Tomlinson (Delaware Geological Survey) and Amanda K. Lawson (formerly Delaware Geological Survey). He organized and chaired two oral sessions (“Integration of Microfossils and Sedimentology in Stratigraphic Analysis” and “Palynology’) and one poster session (“Palynology”). McLaughlin was a co-author on six presentations given by others at the conference, including presentations on the Miocene of Delaware (by Keri Fisher, graduate student, Geological Sciences, University of Delaware), the Potomac Formation of the Middle Atlantic region (by Jesse D. Thornburg, graduate student, Rutgers University), the Cretaceous of New Jersey (by Peter J. Sugarman, New Jersey Geological Survey), the Cretaceous offshore of New Jersey (by Christopher J. Lombardi, graduate student, Rutgers University), the Christina River of Delaware (by Margaret Christie, graduate student, Geological Sciences, University of Delaware), and the coastal plain of northeast Brazil (by Emanuella Barbosa, visiting researcher, Delaware Geological Survey, and graduate student, Universidade Federal do Rio Grande do Norte, Brazil). McLaughlin also served as chair of the annual meeting of AASP-The Palynological Society, held during the GSA conference, and was co-leader of a post-conference field trip (with Heather Quinn, Maryland Geological Survey), “Cretaceous Stratigraphy and Palynology of the Maryland Coastal Plain.”