List of pinnipeds

Pinnipedia is an infraorder of mammals in the order Carnivora, composed of seals, sea lions, and the walrus.

[a] They are widespread throughout the ocean and some larger lakes, primarily in colder waters.

Pinnipeds range in size from the 1.1 m (3 ft 7 in) and 50 kg (110 lb) Baikal seal to the 6 m (20 ft) and 3,700 kg (8,200 lb) male southern elephant seal, which is also the largest member of Carnivora.

[1] Several species exhibit sexual dimorphism, such as the southern elephant seal, where the males can be more than three times as long and six times as massive as the females, or the Ross seal, which has females typically larger than the males.

Four seal species are estimated to have over one million members, while six are classified as endangered with population counts as low as 600, and two, the Caribbean monk seal and the Japanese sea lion, went extinct in the 20th century.

Odobenidae and Otariidae are combined into the superfamily Otarioidea, with Phocidae in Phocoidea.

Nearly one hundred extinct Pinnipedia species have been discovered, though due to ongoing research and discoveries the exact number and categorization is not fixed.

Ranges are based on the IUCN Red List for that species unless otherwise noted.

Odobenus Arctocephalus Neophoca Phocarctos Otaria Zalophus Eumetopias Callorhinus Pusa Phoca Halichoerus Histriophoca Pagophilus Cystophora Erignathus Leptonychotes Hydrurga Lobodon Ommatophoca Mirounga Monachus Neomonachus The following classification is based on the taxonomy described by Mammal Species of the World (2005), with augmentation by generally accepted proposals made since using molecular phylogenetic analysis.

This includes splitting the monk seal genus Monachus into Monachus and Neomonachus, the reorganization of grey seal subspecies, and the removal of the Laptev walrus subspecies.