| Category | Classification |
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Mammalia |
| Order | Carnivora |
| Family | Phocidae (Earless seals) |
| Genus species | *Phoca vitulina (Harbor Seal) *Phoca hispida (Ringed Seal) *Halichoerus grypus (Gray Seal) *Pagophilus groenlandicus (Harp Seal) *Cystophora cristata (Hooded Seal) Erignathus barbatus (Bearded Seal) Phoca caspica (Caspian Seal) Phoca fasciata (Ribbon Seal) Phoca largha (Spotted Seal) Phoca sibirica (Baikal Seal) Hydrurga leptonyx (Leopard Seal) Leptonychotes weddellii (Weddell Seal) Lobodon carcinophagus (Crabeater Seal) Mirounga angustirostris (Northern Elephant Seal) Mirounga leonina (Southern Elephant Seal) Monachus monachus (Mediterranean Monk Seal) Monachus tropicalis (Caribbean Monk Seal) Monachus schauinslandi (Hawaiian Monk Seal) Ommatophoca rossii (Ross Seal) |