We have studied paleoenvironmental changes across the Paleocene/Eocene boundary in the Millville New Jersey coastal plain core (ODP Leg 174AX). Using two independent temperature proxies (the organic paleothermometer TEX86 and Mg/Ca ratio of planktonic foraminifera) and δ18O of planktonic foraminifera, we evaluated temperature and salinity changes at Millville (Makarova et al., in prep.). Paleotemperature estimates show warming of 5-7°C across the PETM, though different temperature calibrations provide a broad range of absolute temperatures. The TEXL86 temperature calibration (Kim et al., 2010) is the only one that yields realistic salinities and thus arguably provides the best temperature estimate (warming from 23°C to 30°C). We are currently integrating isotopic records of planktonic (surface and deep dwelling) and benthic foraminifera at Millville and other New Jersey coastal plain cores to reconstruct the water column structure along the New Jersey paleoshelf during the PETM (i.e. changes in surface to deep water temperature gradient, carbon cycle, and oceanic productivity).