Orcinus paleorca in the context of "Orcinus"

Orcinus is a genus of Delphinidae, the family of carnivorous marine mammals known as dolphins, in the infraorder Cetacea. It includes the largest (and only extant) delphinoid species, Orcinus orca, known as the orca or killer whale. Two extinct species are recognised, Orcinus paleorca and O. citoniensis, describing fossilised remains of the genus. The other extinct species O. meyeri is disputed.