Delphinoidea is the largest group of toothed whales with 66 genera in 6 families. The largest living member of the superfamily is the killer whale, which can reach 6 tons, while the smallest is the vaquita.
Taxonomy
Based on McGowen et al., 2019
Superfamily Delphinoidea
Family †Albireonidae
Genus Albireo
Family Delphinidae
Subfamily Delphininae
Genus Delphinus
Genus Lagenodelphis
Genus Sotalia
Genus Sousa
Genus Stenella
Genus Tursiops
Subfamily Globicephalinae
Genus †Astadelphis
Genus Feresa
Genus Globicephala
Genus Grampus
Genus Orcaella
Genus Peponocephala
Genus Pseudorca
Genus Steno
Subfamily Lissodelphininae
Genus Cephalorhynchus
Genus Lissodelphis
Subfamily Orcininae
Genus †Arimidelphis
Genus †Eodelphinus
Genus †Hemisyntrachelus
Genus Orcinus
Subfamily incertae sedis
Genus †Australodelphis
Genus †Etruridelphis
Genus Lagenorhynchus
Genus †Sinanodelphis
Family †Kentriodontidae
Subfamily Kentriodontinae
Genus Belonodelphis
Genus Delphinodon
Genus Heterodelphis
Genus Incacetus? Genus Kentriodon Genus Lamprolithax Genus Loxolithax Genus Macrokentriodon Genus Microphocaena Genus Rudicetus Genus Tagicetus Subfamily Lophocetinae Genus Hadrodelphis Genus Liolithax Genus Lophocetus Subfamily Pithanodelphininae? Genus Atocetus? Genus Leptodelphis? Genus Pithanodelphis? Genus Sarmatodelphis? Genus Sophianacetus? Subfamily Kampholophinae? Genus Kampholophos? Family Monodontidae Subfamily Delphinapterinae Genus †Bohaskaia Genus Delphinapterus Genus † Denebola Subfamily Monodontinae Genus Monodon Family † Odobenocetopsidae Genus Odobenocetops Family Phocoenidae Genus †Archaeophocaena Genus †Australithax Genus †Brabocetus Genus †Haborophocoena Genus †Lomacetus Genus †Miophocaena Genus Neophocaena Genus †Numataphocoena Genus Phocoena Genus Phocoenoides Genus †Piscolithax Genus †Pterophocaena Genus †Salumiphocaena Genus †Semirostrum Genus †Septemtriocetus Familia incertae sedis Genus †Graamocetus Genus †Miodelphis Genus †Nannolithax Genus †Oedolithax Genus †Palaeophocaena Genus †Platylithax Genus †Protodelphinus