Limnocyoninae

Limnocyoninae Temporal range: 57.0–42.0  Ma PreꞒ Ꞓ O S D C P T J K Pg N Late Paleocene to Late Eocene
Skull of Limnocyon verus
lower jaw of Prolimnocyon antiquus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	† Hyaenodonta
Clade:	† Limnocyoninae Wortman, 1902 [1]
Type genus
† Limnocyon Marsh, 1872
Genera
[see classification]
Synonyms
list of synonyms: Limnocyonidae (Gunnell, 1998) [2] Limnocyoninae (Wortman, 1902) Limnocyonini (Van Valen, 1966) [3] Limnocyononae (Lavrov, 1999) [4] Limnocyontidae (Savage, 1973) [5]

Limnocyoninae ("swamp dogs") is a clade of extinct predatory mammals from extinct order Hyaenodonta. Fossil remains of these mammals are known from late Paleocene to late Eocene deposits in North America and Asia. ^[6] Limnocyonines had only two molars in the upper and lower dentition. ^[7]

Classification and phylogeny

Taxonomy

Clade: †Limnocyoninae(Wortman, 1902) Genus: † Iridodon (Morlo & Gunnell, 2003) †Iridodon datzae(Morlo & Gunnell, 2003) Genus: † Limnocyon (paraphyletic genus)(Marsh, 1872) †Limnocyon cuspidens(Morlo & Gunnell, 2005) †Limnocyon potens(Matthew, 1909) †Limnocyon verus(Marsh, 1872) Genus: † Oxyaenodon (Matthew, 1899) †Oxyaenodon dysodus(Matthew, 1899) Genus: † Prolaena (Xu, 1979) †Prolaena parva(Xu, 1979) Genus: † Prolimnocyon (paraphyletic genus)(Matthew & Granger, 1915) †Prolimnocyon antiquus(Matthew & Granger, 1915) †Prolimnocyon atavus(Matthew & Granger, 1915) †Prolimnocyon chowi(Meng, 1998) †Prolimnocyon eerius(Gingerich, 1989) †Prolimnocyon haematus(Gingerich & Deutsch, 1989) †Prolimnocyon sp. [South Pass, Green River Basin, Wyoming] (Muldoon, 2018) Genus: † Thinocyon (Marsh, 1872) †Thinocyon medius(Wortman, 1902) †Thinocyon velox(Marsh, 1872) Incertae sedis : † "Thinocyon" sichowensis (Chow, 1975)

References

1. J. L. Wortman (1902.) "Studies of Eocene Mammalia in the Marsh Collection, Peabody Museum." The American Journal of Science, series 4 13:197-206
2. G. F. Gunnell (1998.) "Creodonta". In C. M. Janis, K. M. Scott, and L. L. Jacobs (eds.), "Evolution of Tertiary Mammals of North America, Volume 1: Terrestrial Carnivores, Ungulates, and Ungulate like Mammals", Cambridge University Press, 703 pages ISBN   9780521355193
3. L. Van Valen (1966.) "Deltatheridia, a new order of Mammals." Bulletin of the American Museum of Natural History 132(1):1-126
4. A. V. Lavrov (1999.) "Adaptive Radiation of Hyaenodontinae (Creodonta, Hyaenodontidae) of Asia." in 6th Congress of the Theriological Society, Moscow, April 13–16, p. 138 [in Russian].
5. Savage, R. J. G. (1973). "Megistotherium, gigantic hyaenodont from Miocene of Gebel Zelten, Libya". Bulletin of the British Museum (Natural History), Geology. 22 (7): 483–511. doi: 10.5962/p.150151 .
6. McKenna, Malcolm C.; Bell, Susan K. (1997). Classification of Mammals Above the Species Level. New York: Columbia University Press. ISBN   978-0-231-11012-9 . Retrieved 16 March 2015.
7. M. Morlo and G. F. Gunnell (2005.) "New species of Limnocyon (Mammalia, Creodonta) from the Bridgerian (middle Eocene)." Journal of Vertebrate Paleontology 25(1):251-255