List of extinct cetaceans

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Template:Short description Script error: No such module "For". The list of extinct cetaceans features the extinct genera and species of the order Cetacea. The cetaceans (whales, dolphins and porpoises) are descendants of land-living mammals, the even-toed ungulates. The earliest cetaceans were still hoofed mammals. These early cetaceans became gradually better adapted for swimming than for walking on land, finally evolving into fully marine cetaceans.

This list currently includes only fossil genera and species. However, the Atlantic population of gray whales (Eschrichtius robustus) became extinct in the 18th century, and the baiji (or Chinese river dolphin, Lipotes vexillifer) was declared "functionally extinct" after an expedition in late 2006 failed to find any in the Yangtze River.

Suborder Archaeoceti

Family Ambulocetidae

(Eocene)

File:Dorudon BW.jpg
Dorudon

Family Basilosauridae

(Late Eocene)

File:Basilosaurus1DB.jpg
Basilosaurus cetoides reconstruction

Family Kekenodontidae

(Oligocene)


Family Pakicetidae

(Early to Middle Eocene)

File:Ambulocetus et pakicetus.jpg
Ambulocetus skeleton in front and Pakicetus behind

Family Protocetidae

(Eocene)

File:Rhodocetus BW.jpg
Rhodocetus kasrani reconstruction

Family Remingtonocetidae

(Eocene)

Suborder Mysticeti

Family Llanocetidae

(Late Eocene-Early Oligocene)

Family Mammalodontidae

(jr synonym Janjucetidae)

File:Janjucetus Melb Museum email.jpg
Janjucetus hunderi

(Late Oligocene)

Family incertae sedis

Clade Kinetomenta

Family Aetiocetidae

(Oligocene)

File:Aetiocetus BW.jpg
Aetiocetus restoration

Clade Chaeomysticeti

Family incertae sedis

Superfamily Eomysticetoidea

Family Cetotheriopsidae

(Oligocene to Miocene)

Family Eomysticetidae

(Oligocene to early Miocene)

Family Aglaocetidae

(Miocene)

Superfamily Balaenoidea

Family Balaenidae

(Miocene to Recent)

Family incertae sedis

Clade Thalassotherii

Family Cetotheriidae

(Miocene - Pliocene)

Classification follows Steeman (2007) unless otherwise noted.[13]

File:Cetotherium BW.jpg
Cetotherium restoration


Family Diorocetidae

(Miocene to Pliocene)

Family Neobalaenidae

(Miocene to Recent)

Family Pelocetidae

(Miocene)

Family incertae sedis

Superfamily Balaenopteroidea

File:Eobalaenoptera.jpg
Eobalaenoptera skeleton
Family Balaenopteridae

(Miocene to Recent)

Family Eschrichtiidae

(Miocene to Recent)

Family Tranatocetidae
Family incertae sedis

Suborder Odontoceti

Basal forms

Family Agorophiidae

(Early Oligocene)

Family Ashleycetidae

(Early Oligocene)

Family Patriocetidae

(Oligocene to Early Miocene)

Family Simocetidae

(Early Oligocene)

Family Xenorophidae

(Late Oligocene)

Family Inticetidae

Family Microzeuglodontidae

Family Squaloziphiidae

(Late Oligocene to Early Miocene)

Family incertae sedis

Superfamily Squalodontoidea

Family Dalpiazinidae

(Late Oligocene to Miocene)

Family Prosqualodontidae

(Late Oligocene-Middle Miocene)

Superfamily Physeteroidea

Family Kogiidae

(Miocene to recent)

Family Physeteridae

Family incertae sedis

Superfamily "Eurhinodelphinoidea"

Family Argyrocetidae

(Late Oligocene to Early Miocene)

Family Eoplatanistidae

(Miocene)

Family Eurhinodelphinidae

(Late Oligocene to Late Miocene)

File:Macrodelphinus kelloggi.jpg
Macrodelphinus & Eurhinodelphis

Superfamily Platanistoidea

Family Allodelphinidae

(Late Oligocene to Middle Miocene)

File:Arktocara NT small.jpg
Life reconstruction of Arktocara yakataga

Family Platanistidae

(Early Miocene to Recent)

Family Squalodelphinidae

(Late Oligocene to Middle Miocene)

Family Squalodontidae

(Late Oligocene to Middle Miocene)

Family Waipatiidae

(Late Oligocene to Early Miocene)

Superfamily Ziphioidea

Family Ziphiidae

(Miocene to Recent)

Clade Delphinida

Family incertae sedis

Superfamily Delphinoidea

Family Albireonidae

(Miocene to Pliocene)

Family Delphinidae
File:Delfino etrusco.JPG
Etruridelphis giulii

(Oligocene to Recent)

Family Kentriodontidae

(Oligocene to Pliocene)

File:Kentriodon BW.jpg
Kentriodon reconstruction
Family Monodontidae

(Miocene to Recent)

Family Odobenocetopsidae

(Late Miocene to Early Pliocene)

File:Odobenocetops BW.jpg
Odobenocetops reconstruction
Family Phocoenidae

(Miocene to Recent)

Superfamily Inioidea

Family Iniidae

(Miocene to Recent)

Family Pontoporiidae

(Middle Miocene to Recent)

Superfamily Lipotoidea

Family Lipotidae

(Late Miocene to Recent)

Superfamily incertae sedis

Family incertae sedis

See also

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References

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  36. ↑ G. Bianucci, O. Lambert, and K. Post. 2007. A high diversity in fossil beaked whales (Mammalia, Odontoceti, Ziphiidae) recovered by trawling from the sea floor off South Africa. Geodiversitas 29(4):561-618
  37. ↑ Miyazaki, N.; Hasegawa, Y. 1992: A new species of fossil beaked whale, Mesoplodon tumidirostris sp. nov. (Cetacea, Ziphiidae) from the Central North Pacific. Bulletin of the National Science Museum (A), 18: 167–174.
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