Fig. 2

Core summary diagram for Bob Allen Key (BA). Carbon isotopes, selected pollen groups, and presence of algal cysts, foraminifera and dinoflagellates, and mollusks. Regional pollen includes Pinus (pine) and Quercus (oak). Freshwater marsh sums include Poaceae, Cyperaceae, Nymphaea, Typha, Rhynchus, Cladium, Schoenoplectus, Sagittaria, Crinum, and Amaryllidaceae. Terrestrial sum includes all taxa except the regional taxa and mangrove taxa, as well as Batis maritima and Amaranthaceae. Presence of certain taxa include Ovoidites, Spirogyra (closed blue circles); dinoflagellates, foraminifera (black closed circles). Mollusk presence is shown in order of increasing salt-water/estuarine habitat and distance from shoreline from left to right. Red squares indicate abundance or dominance in a given sample. Radiocarbon age control shown by black rectangle next to the lithology