This mentioned taxonomy is an attempt to make an conclusive assignment from the different classifications of various scientists. Because the taxonomy may change due to the latest investigative methods and other findings, our map is a guide only.
L. Dewaele, 2017 - On Prophoca and Leptophoca (Pinnipedia, Phocidae) from the Miocene of the North Atlantic realm: redescription, phylogenetic affinities and paleobiogeographic implications - PeerJ (5), e3024- (journal article, English)
F. W. True, 1906 - Description of a new genus and species of fossil seal from the Miocene of Maryland - Proceedings of the United States National Museum (30), 835-840 (journal article, English)
P. J. Van Beneden, 1876 - Les phoques fossiles du bassin d'Anvers - Bulletins de l'Academie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique (41), 783-803 (journal article, French)