List of fossil pinnipedimorphs Kamtschatarctos Prototaria Pelagiarctos Puijila Amphicynodontidae Pontophoca Pachyphoca Nanophoca Phocanella Homiphoca Afrophoca Imagotaria Monotherium Kolponomos Frisiphoca Piscophoca Monachinae Proneotherium Hadrokirus Desmatophoca Pontolis Valenictus Platyphoca Leptophoca Ontocetus Noriphoca Pinnipedimorpha Gryphoca Desmatophocidae Lobodontini Callophoca Drassonax Semantoridae Praepusa Pliopedia Pliophoca Titanotaria Pteronarctos Aivukus Otarioidea Auroraphoca Potamotherium Thalassoleon Archaeodobenus Gomphotaria Acrophoca Nanodobenus Osodobenus Phocinae Neotherium Odobenidae Amphicticeps Enaliarctos Allodesmus Amphicynodon List of pinnipeds 2021 in paleomammalogy