Enaliarctos_emlongi
Pteronarctos_goedertae
Proneotherium_repenningi
Neotherium_mirum
Pelagiarctos_spp
Imagotaria_downsi
Odobenus_rosmarus
Allodesmus_kernensis
Desmatophoca_oregonensis
Erignathus_barbatus
Monachus_monachus
Thalassoleon_mexicanus
Pithanotaria_starri
Thalassoleon_inouei
Thalassoleon_macnallyae
Callorhinus_gilmorei
Callorhinus_ursinus
Eotaria_crypta
Arctocephalus_australis
Zalophus_californianus
Otaria_byronia
Eumetopias_jubatus
Proterozetes_ulysses