This article describes the first fossil remains of the harp seal ( Phoca groenlandica) and the ring seal ( Phoca hispida) from the southern North Sea. Also new fossils of the bearded seal ( Erignathus barbatus) are mentioned. Some 14 C dating results confirm the assumption that the fossil Phocidae of the Southern North Sea area must have roamed the seas during a short interval of the Late Pleistocene. Harbour seal ( Phoca vitulina) is not yet known from the Pleistocene of the North Sea; all former announcements of this species turn out to be based on erroneous identified fossils of harp seal.