(Enaliarctos_emlongi,(Pteronarctos_goedertae,Callorhinus_ursinus,((Desmatophoca_oregonensis,Allodesmus_gracilis),(Erignathus_barbatus,Monachus_monachus)),(Prototaria_primigenia,(Proneotherium_repenningi,(Neotherium_mirum,Kamtschatarctos_sinelnikovae,(Pseudotaria_muramotoi,((Imagotaria_downsi,Pelagiarctos_sp),(Pontolis_magnus,(Dusignathus_santacruzensis,Dusignathus_seftoni,Gomphotaria_pugnax,(Aivukus_cedrosensis,Protodobenus_japonicus,Ontocetus_emmonsi,(Valenictus_chulavistensis,Odobenus_rosmarus)))))))))));