Llanocetidae

Llanocetidae; Temporal range: Late Eocene, Priabonian PreꞒ Ꞓ O S D C P T J K Pg N ↓
	Skull of Llanocetus at the Smithsonian Museum of Natural History
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Infraorder:	Cetacea
Parvorder:	Mysticeti
Family:	†Llanocetidae; Mitchell, 1989
Genera
	†Llanocetus; †Mystacodon; †OU GS10897 (unnamed genus);

Llanocetidae is an extinct family of ancient toothed baleen whales from the Eocene. It was named by American paleontologist Edward Mitchell in 1989 after describing the Antarctic Llanocetus,[1] but a 2018 study by paleontologists Ewan Fordyce and Felix Marx included the Peruvian Mystacodon and an undescribed New Zealand specimen OU GS10897.[2]

References

Mitchell, E. D. (1989). "A new cetacean from the Late Eocene La Meseta Formation, Seymour Island, Antarctic Peninsula". Canadian Journal of Fisheries and Aquatic Sciences. 46: 2219–2235. doi:10.1139/f89-273.
Fordyce, R. E.; Marx, F. G. (2018). "Gigantism precedes filter feeding in baleen whale evolution". Current Biology. 28 (10): 1670–1676. doi:10.1016/j.cub.2018.04.027. PMID 29754903.

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[1] Mitchell, E. D. (1989). "A new cetacean from the Late Eocene La Meseta Formation, Seymour Island, Antarctic Peninsula". Canadian Journal of Fisheries and Aquatic Sciences. 46: 2219–2235. doi:10.1139/f89-273.

[2] Fordyce, R. E.; Marx, F. G. (2018). "Gigantism precedes filter feeding in baleen whale evolution". Current Biology. 28 (10): 1670–1676. doi:10.1016/j.cub.2018.04.027. PMID 29754903.