Northeastern United States Continental Shelf 1970-01-01
Ocean 1970-01-01
Ocean temperature 1970-01-01
Oceanic trench 1970-01-01
Perched coastline 1970-01-01
Presque-isle 1970-01-01
Pseudo-atoll 1970-01-01
Pythia's Oasis 1970-01-01
Raised beach 1970-01-01
Raised coral atoll 1970-01-01
Raised shoreline 1970-01-01
Rauk 1970-01-01
Reef 1970-01-01
Ria 1970-01-01
Roadstead 1970-01-01
Rocky shore 1970-01-01
Salt marsh 1970-01-01
Salt pannes and pools 1970-01-01
Sea 1970-01-01
Sea cave 1970-01-01