Pliocene Quaternary Deposits of Delaware Palynology Ages Paleoenvironments Author:Johan J. Groot The surficial Pliocene and Quaternary sedimentary deposits of the Atlantic Coastal Plain of Delaware comprise several formal and informal stratigraphic units. Their ages and the paleoenvironments they represent are interpreted on the basis of palynological and lithologic data and, to a lesser degree, on geomorphology. Includes 3 plates showing 2... more »9 fossils .« less