Xenorophidae

Xenorophidae Temporal range: 30–23.03 Ma PreꞒ Ꞓ O S D C P T J K Pg N Oligocene^[1]

Cotylocara
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Infraorder:	Cetacea
Parvorder:	Odontoceti
Family:	†Xenorophidae Uhen, 2008
Genera
Albertocetus Archaeodelphis Cotylocara Echovenator Inermorostrum Mirocetus Xenorophus

Xenorophidae is an extinct family of odontocetes currently known from the Oligocene of the southeastern US. Known genera of xenorophids include Albertocetus, Archaeodelphis, Cotylocara, Echovenator, Inermorostrum, and Xenorophus.^[2]^[3]^[4]^[5]^[6]^[7]^{[excessive citations]}

Albertocetus reconstruction outline, showing known bones in red. From Boessenecker et al. 2017

References[]

^ "Xenorophidae". paleobiodb.org.{{cite web}}: CS1 maint: url-status (link)
^ M. D. Uhen. 2008. A new Xenorophus-like odontocete cetacean form the Oligocene of North Carolina and a discussion of the basal odontocete radiation. Journal of Systematic Palaeontology 6(4):433-452
^ Jonathan H. Geisler, Matthew W. Colbert, James L. Carew. A new fossil species supports an early origin for toothed whale echolocation. Nature, 2014; doi: 10.1038/nature13086
^ R. Kellogg. 1923. Description of an apparently new toothed cetacean from South Carolina. Smithsonian Miscellaneous Collections 76(7):1-7
^ G. M. Allen. 1921. A new fossil cetacean. Bulletin of the Museum of Comparative Zoology 65(1):1-14
^ Morgan Churchill; Manuel Martinez-Caceres; Christian de Muizon; Jessica Mnieckowski; Jonathan H. Geisler (2016). "The Origin of High-Frequency Hearing in Whales". Current Biology. in press. doi:10.1016/j.cub.2016.06.004.
^ Jonathan H. Geisler; Robert W. Boessenecker; Mace Brown; Brian L. Beatty (2017). "The Origin of Filter Feeding in Whales". Current Biology. 27 (13): 2036–2042.e2. doi:10.1016/j.cub.2017.06.003.

†Agorophius †Ankylorhiza †Archaeodelphis † † † †Chilcacetus † † †Inticetus †Macrodelphinus †Microcetus †Mirocetus †Neosqualodon † †Otekaikea † †Patriocetus †Phoberodon † †Prosqualodon †Simocetus †Waipatia
†Xenorophidae	Albertocetus Cotylocara Echovenator Inermorostrum Xenorophus
†Squalodontidae	Eosqualodon Squalodon
†	Squaloziphius
†Eurhinodelphinidae	Eurhinodelphis Mycteriacetus Schizodelphis Xiphiacetus
Crown-Odontoceti	see below↓

†Acrophyseter †Albicetus †Brygmophyseter †Eudelphis †Hoplocetus †Livyatan †Miophyseter † †Scaldicetus †Zygophyseter
Kogiidae	†Aprixokogia Kogia † †Nanokogia † † †Praekogia †Scaphokogia †?
Physeteridae	†Aulophyseter † †Diaphorocetus †Idiophyseter †Idiorophus †Orycterocetus Physeter †Physeterula † †?

Platanistoidea

† †? † † †Otekaikea? † †Urkudelphis †Waipatia? †Eurhinodelphinidae? †Squalodontidae?
†Allodelphinidae?	Allodelphis Arktocara Goedertius Ninjadelphis Zarhinocetus
†Squalodelphinidae?	Huaridelphis Macrosqualodelphis Notocetus Phocageneus
Platanistidae	†Araeodelphis †Dilophodelphis †Pachyacanthus? Platanista †Pomatodelphis †Prepomatodelphis †?

† †Beneziphius †Caviziphius †Chavinziphius † †Choneziphius †Dagonodum †Globicetus †Imocetus †Messapicetus † † † † † Tasmacetus †Tusciziphius †Xhosacetus †
Berardiinae	† Berardius †Microberardius
Ziphiinae	† Ziphius
Hyperoodontinae	†Africanacetus Hyperoodon † Indopacetus Mesoplodon

Delphinida	see below↓

† †Atocetus † †Hadrodelphis †Liolithax †Lophocetus †Macrokentriodon †Odobenocetops † †Tagicetus
†Kentriodontidae	Kentriodon Rudicetus Wimahl
Lipotidae	Lipotes †Parapontoporia †

Inioidea

†Awadelphis
Iniidae	†Brujadelphis †Goniodelphis Inia † †? †Isthminia † †Meherrinia † †
Pontoporiidae	†Atocetus? †Auroracetus †Brachydelphis † † † † † † †Stenasodelphis Pontoporia

Monodontidae	†Bohaskaia †Casatia Delphinapterus †Denebola † Monodon
Phocoenidae	†Archaeophocaena † † † †Miophocaena Neophocaena † Phocoena Phocoenoides † †Pterophocaena? †Semirostrum †

† †Australodelphis †Eodelphinus †Etruridelphis †Hemisyntrachelus Lagenorhynchus † Orcinus †Platalearostrum † †Pterophocaena?
Lissodelphininae	Cephalorhynchus Lissodelphis
Delphininae	Delphinus Lagenodelphis Sotalia Sousa Stenella Tursiops
Globicephalinae	Feresa Globicephala Grampus Orcaella Peponocephala Pseudorca Steno

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