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Osbornodon; Temporal range: Early Oligocene–Early Miocene PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Carnivora
Family:	Canidae
Subfamily:	†Hesperocyoninae
Genus:	†Osbornodon; Wang, 1994
Type species
	†Osbornodon fricki;
Species
	See text
	Approximate range of Osbornodon based on fossil distribution

Osbornodon ("Osborn's tooth") is an extinct genus of canid that were endemic to North America and which lived from the Oligocene to the Early Miocene, 33.9—15.97 Ma (AEO), existing for approximately 18 million years. ^[1] It was the last surviving genus of the hesperocyonine subfamily, the oldest subfamily of canids.^[2] The genus is named for Henry Fairfield Osborn.^[3]

Species

Seven known species of Osbornodon existed:

Osbornodon brachypus Cope 1881
Osbornodon fricki Wang 1994 (18 Ma)
Osbornodon iamonensis Sellards 1916 (21 Ma)
Osbornodon renjiei Wang 1994 (33 Ma)
Osbornodon sesnoni Macdonald 1967 (32 Ma)
Osbornodon scitulus Hay 1924
Osbornodon wangi Hayes 2000

The earlier species were about the size of a small fox, and had teeth suggesting an omnivorous or hypocarnivorous diet. Later species were larger and more actively predaceous. The last species, O. fricki, was about the size of a large wolf.^[2]

References

^ Paleobiology Database: Osbornodon.
^ ^a ^b Wang, Xiaoming; Tedford, Richard H. (2008). Dogs, Their Fossil Relatives and Evolutionary History. Columbia. p. 31. ISBN 978-0-231-13528-3.
^ Wang, Xiaoming; Tedford, Richard H.; Antón, Mauricio (2010). "3. Diversity: Who is Who in the Dog Family". Dogs: their fossil relatives and evolutionary history. New York: Columbia University Press. ISBN 978-0-231-13529-0.

R. M. Nowak. 1991. Walker's Mammals of the World. Maryland, Johns Hopkins University Press (edited volume) II

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[1] Paleobiology Database: Osbornodon.

[Wang2008-2] Wang, Xiaoming; Tedford, Richard H. (2008). Dogs, Their Fossil Relatives and Evolutionary History. Columbia. p. 31. ISBN 978-0-231-13528-3.

[3] Wang, Xiaoming; Tedford, Richard H.; Antón, Mauricio (2010). "3. Diversity: Who is Who in the Dog Family". Dogs: their fossil relatives and evolutionary history. New York: Columbia University Press. ISBN 978-0-231-13529-0.

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