| 词条 | Homacodontidae |
| 释义 |
| name = Homacodontidae | fossil_range = {{Fossil range|Early Eocene|Late Oligocene}} | image = | image_caption = | taxon = Homacodontidae | authority = Marsh, 1874 | subdivision_ranks = Genera | subdivision = see text }} Homacodontidae is an extinct family of basal artiodactyl mammal They were small animals, averaging about the size of a modern rabbit, had many primitive features. In life, they would have resembled a long-tailed muntjac or chevrotain. 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 were browsers, 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] TaxonomyMcKenna and Bell (1997) listed homacodonts as a subfamily of Dichobunidae.[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:
References1. ^{{cite book |author1=Savage, RJG |author2= Long, MR |last-author-amp=yes |year=1986 |title= Mammal Evolution: an illustrated guide|publisher= Facts on File|location=New York|pages= 208–209|isbn= 0-8160-1194-X}} {{paleo-eventoedungulate-stub}}2. ^{{cite book |editor=Palmer, D.|year=1999 |title= The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals|publisher= Marshall Editions|location=London|pages= 266|isbn= 1-84028-152-9}} 3. ^{{cite book |author1=McKenna, M. C |author2=S. K. Bell | year = 1997 | title = Classification of Mammals Above the Species Level | publisher = 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. ^1 Stucky, 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. 4 : Eocene even-toed ungulates|Oligocene even-toed ungulates|Eocene first appearances|Chattian extinctions |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。