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