Middle Miocene to Recent | regnum = Animalia | phylum = Chordata | classis = Mammalia | ordo = Carnivora | subordo = Caniformia | superfamilia = Pinnipedia | familia = Phocidae | familia_authority = Gray, 1821 | subdivision_ranks = Genera | subdivision = Cystophora Erignathus Halichoerus Histriophoca Hydrurga Leptonychotes Lobodon Mirounga Monachus Ommatophoca Pagophilus Phoca Pusa }} The true seals or earless seals are one of the three main groups of mammals within the seal suborder… (More on Phocidae)