Leptomeryx
Leptomeryx is an extinct genus of ruminant of the family Leptomerycidae, endemic to North America during the Eocene through Oligocene 38–24.8 Mya, existing for approximately 13.2 million years. It was a small deer-like ruminant with somewhat slender body.
Mounted skeleton
L. evansi
| Leptomeryx | |
|---|---|
 | |
| Skeleton, Paleontology Museum of Zurich | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Artiodactyla |
| Family: | †Leptomerycidae |
| Subfamily: | †Leptomerycinae |
| Genus: | †Leptomeryx Leidy, 1853 |
| Type species | |
| †Leptomeryx evansi | |
| Species[2] | |
| |
Fossil distribution
Sites and species recovered:
- Titus Canyon, Inyo County, California (L.blacki) ~30.6—33.9 Ma.
- UNSM Sx-8 (Orella C), Sioux County, Nebraska (L. elissae) ~33.9—24.8 Ma.
- Anxiety Butte, Saskatchewan, Canada (L. sp., L. evansi) ~38—24.8 Ma.
- Calf Creek, Saskatchewan, Canada, (L. mammifer) ~38—33.3 Ma.
- Toadstool Park, Sioux County, Nebraska (L. speciosus) ~37.2—33.3 Ma.[3]
- Medicine Pole Hills, Bowman County, North Dakota (L. yoderi) ~38—33.9 Ma.[4]
References
- Webb, 1998, p. 474.
- Webb, 1998, p.471.
- Paleobiology database: Toadstool Park collection
- Paleobiology database: Medicine Pole Hills collection
- Webb, S.D., 1998. Hornless ruminants. pp. 463–476 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 Ungulatelike Mammals. Cambridge University Press, Cambridge. ISBN 0-521-35519-2
- Heaton, T.H. and Emry, R.J., 1996. Leptomerycidae pp. 581–608 in D.R. Prothero and R.J. Emry (eds.) The Terrestrial Eocene-Oligocene Transition in North America. Cambridge University Press, Cambridge.
- Clark, John (1970-03-27). "Population dynamics of Leptomeryx". Fieldiana Geology. 16 (16): 411–451. Retrieved 2014-04-20.
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