I am looking for a global dataset with the extent of seas and ocean in a vector dataset of polygons. I know that boundaries are sometimes fuzzy (maybe crisp boundaries don't really exist in some case), but I can manage this uncertainty. If I could have an attribute with the names it would be even better.
The aim is to reuse this dataset in a research project where we would start by checking that sample coordinate are consistent (does the attribute of the sample match with the name of the sea/ocean in the map). Therefore we need polygons and not only lines or names.