List of fossil pinnipedimorphs Pelagiarctos Kamtschatarctos Prototaria Phocanella Nanophoca Monotherium Puijila Homiphoca Amphicynodontidae Imagotaria Afrophoca Frisiphoca Pachyphoca Kolponomos Pontophoca Desmatophoca Hadrokirus Piscophoca Drassonax Semantoridae Praepusa Proneotherium Platyphoca Valenictus Pinnipedimorpha Auroraphoca Otarioidea Leptophoca Pontolis Pliopedia Thalassoleon Pliophoca Gryphoca Desmatophocidae Ontocetus Pteronarctos Noriphoca Archaeodobenus Callophoca Gomphotaria Aivukus Potamotherium Osodobenus Titanotaria Allodesmus Acrophoca Nanodobenus Neotherium Amphicticeps Enaliarctos Amphicynodon List of pinnipeds