Superfamily Phalacrocoracoidea (bird)
Parent taxon: Sulida according to B. C. Livezey and R. L. Zusi 2007
Sister taxon: Suloidea
Subtaxa: none
Ecology: ground dwelling carnivore
Distribution: found only at Jansen Creek Mbr, Makah Fm - Jansen Creek (Eocene to Oligocene of Washington)