15 



z 



Leptonychotes 



Ommatophoca 



Hydrurga 



Lobodon 



Mirounga spp. 



Monachus schauinslandi 



Monachus tropicalis 



Monachus monachus 



Pusa spp. 



Phoca spp. 



Halichoerus 



Histriophoca 



Pagophilus 



Cystophora 



Erignathus 



Otarioidea 



Arctoidea, or one of: 

 Ursidae, Lutrinae, 

 or Mustelidae 



Fig.2: Diagrammatic representation of the current state of knowledge regarding phocid phylogeny. 

 Rectangles indicate monophyletic groups with uncertain internal phylogeny (with the most commonly 

 suggested pattern filled in when possible). Question marks refer to either general uncertainty (outgroup 

 relationships) or to possible instances of paraphyly (ingroup relationships). 



