Full reference: G. G. Simpson. 1945. The principles of classification and a classification of mammals. Bulletin of the American Museum of Natural History 85:1-350
Parent taxon: Odontoceti according to M. Viglino et al. 2018
See also Agnarsson and May-Collado 2008, Aguirre-Fernández et al. 2017, Barnes 1984, Barnes 2006, Barnes et al. 1985, Barnes and Reynolds 2009, Berta 2017, Bianucci et al. 2013, Bianucci et al. 2018, Bianucci et al. 2011, Bianucci and Landini 2007, Bianucci et al. 2015, Boersma et al. 2017, Carone and Marra 2014, Cozzuol 1985, Fordyce and Barnes 1994, Fordyce et al. 1995, Fordyce and de Muizon 2001, Fraser and Purves 1960, Geisler et al. 2011, Geisler and Sanders 2003, Gingerich 2005, Gondar 1966, Gutstein et al. 2009, Kasuya 1973, Kimura et al. 2009, Lambert 2006, Lambert et al. 2014, Lambert et al. 2008, Marx et al. 2016, May-Collado et al. 2007, McKenna and Bell 1997, Nelson and Uhen 2018, Paula Couto 1956, Rice 1998, Rice 2002, Rice 2009, Simpson 1945, Tanaka et al. 2017, Tanaka and Fordyce 2014, Tanaka and Fordyce 2015, Tanaka and Fordyce 2016, Uhen et al. 2008, Vidal 1991, Viglino et al. 2022 and Whitmore and Kaltenbach 2008
Sister taxa: Acrodelphinidae, Agorophioidea, Agriocetus, Amblyoccipita, Argyrocetus, Ashleycetidae, Atropatenocetus, Aureia, Balaenodon, Belosphys, Berardiopsis, Caolodelphis, Cetophis, Champsodelphis, Champsodelphis italicus, Chilcacetus, Colophonodon, Delphinapterus orcinus, Delphinida, Delphinoceti, Delphinodon mento, Delphinopsis, Delphinorhynchus, Delphinus domeykoi, Delphinus restitutensis, Delphinus vanzelleri, Dinoziphius, Ediscetus, Enigmatocetus, Eurhinodelphinida, Eurhinodelphinidae, Eurhinodelphis minoensis, Eurhinodelphis sassariensis, Graamocetus, Graphiodon, Helvicetus, Helvicetus rugosus, Hesperocetus, Hesperoinia, Homaeocetus, Homocetus villersii, Hyperoodontoidea, Inticetidae, Ixacanthus, Kharthlidelphis, Lonchodelphis, Macrochirifer, Macrodelphinus, Mesoplodontidae, Microcetus, Miokogia, Miotursiops, Mirocetidae, Monodontoidea, Nannolithax, Neosqualodon, Oedolithax, Oligodelphis, Oligosqualodon, Palaeoziphius, Pandelphinida, Panphyseteroidea, Parapontoporiidae, Parasqualodon, Patriocetidae, Pelodelphis, Phoberodon, Phoca debilis, Phoca rugosidens, Phococetus, Physeteroidea, Physetodon, Platanidelphidi, Platanistida, Platydelphis, Pontivaga, Priscodelphinus, Priscodelphinus teres, Priscophyseter, Priscophyseter typus, Proinia, Prolipotes, Prophyseter, Prosqualodon, Prosqualodon hamiltoni, Proterocetus, Rhabdosteoidea, Rhabdosteus, Rhabodosteus, Romaleodelphis, Sachalinocetus, Saurocetus, Saurocetus gibbesii, Scaptodon, Scaptodon lodderi, Squaloceti, Squalodelphis pusillus, Squalodon (Microzeuglodon) wingei, Squalodon crassus, Squalodon imperator, Squalodon linzianus, Squalodon molassicus, Squalodon pelagius, Squalodon vocontiorum, Squalodon wymanii, Squalodontidae, Squalodontoidea, Stereodelphis, Sulakocetus, Synrhina, Tretosphys, Tretosphys uraeus, Uncamentodon, Xenorophidae, Zignodelphinidae, Ziphioidea, Susoidea, Susuoidea
Subtaxa: Allodelphinidae Aondelphis Awamokoa Dalpiazinidae Dolgopolis Perditicetus Prosqualodontidae Squalodelphinidae Urkudelphis Waipatiidae
Ecology: aquatic carnivore
Distribution:
• Miocene of Argentina (6 collections), France (1), Germany (1), Italy (3), Japan (5), Malta (3), Mexico (1), the Netherlands (1), New Zealand (3), Peru (6), Switzerland (1), United States (13: California, Delaware, Maryland, North Carolina, Oregon, Virginia, Washington), Venezuela (3)
• Waitakian of New Zealand (4)
• Oligocene to Miocene of Malta (1), New Zealand (1), United States (1: Oregon)
• Oligocene of Australia (2), Denmark (1), Ecuador (1), Germany (1), Mexico (3), New Zealand (5), United States (4: Alaska, California, South Carolina)
Total: 71 collections including 77 occurrences