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Homacodontidae

From Wikipedia, the free encyclopedia
Extinct family of mammals

Homacodontidae
Temporal range:Early Eocene–Late Oligocene
Hylomeryx annectens
Scientific classificationEdit this classification
Domain:Eukaryota
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Order:Artiodactyla
Suborder:Tylopoda
Family:Homacodontidae
Marsh, 1874
Genera

see text

Homacodontidae is an extinctfamily ofbasalartiodactylmammals from the earlyEocene to lateOligocene ofNorth America,Europe, andAsia.

Description

[edit]

They were small animals, averaging about the size of a modernrabbit, had many primitive features. In life, they would have resembled a long-tailedmuntjac orchevrotain. Dichobunids had four or five toes on each foot, with each toe ending in a small hoof. They had complete sets of teeth, unlike most later artiodactyls, with their more specialist dentitions.[1] The shape of the teeth suggests they werebrowsers, feeding on small leaves, perhaps in the forest undergrowth. The shape of their bodies and limbs suggests they would have been fast-running animals, unlike most of their contemporaries.[2]

Taxonomy

[edit]

McKenna and Bell (1997) listed homacodonts as a subfamily ofDichobunidae.[3] However, subsequent authors recognize Homacodontidae as a distinct family in its own right.[4][5]

The following genera are listed below as per McKenna and Bell (1997), with few additions since:

References

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  1. ^Savage, RJG & Long, MR (1986).Mammal Evolution: an illustrated guide. New York: Facts on File. pp. 208–209.ISBN 0-8160-1194-X.
  2. ^Palmer, D., ed. (1999).The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 266.ISBN 1-84028-152-9.
  3. ^McKenna, M. C; S. K. Bell (1997).Classification of Mammals Above the Species Level. Columbia University Press.ISBN 0-231-11012-X.
  4. ^J. M. Theodor, J. Erfurt, and G. Metais. 2007. The earliest artiodactyls. In D. R. Prothero, S. E. Foss (eds.), The Evolution of Artiodactyls 32-58.
  5. ^abStucky, Richard K.; Covert, Herbert H. (2014). "A new genus and species of early Eocene (Ypresian) Artiodactyla (Mammalia), Gagadon minimonstrum, from Bitter Creek, Wyoming, U.S.A." Journal of Vertebrate Paleontology. 34 (3): 731–736. doi:10.1080/02724634.2013.827580.
Homacodontidae


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