Lagomorpha: Wikis

  

Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.

Encyclopedia

From Wikipedia, the free encyclopedia

Lagomorphs[1]
Fossil range: Late Paleocene–Recent
Pika, Ochotona princeps, in Sequoia National Park
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Eutheria
Magnorder: Boreoeutheria
Superorder: Euarchontoglires
Order: Lagomorpha
Brandt, 1855
Families

Leporidae
Ochotonidae
Prolagidae (extinct)

The lagomorphs are the members of the taxonomic order Lagomorpha, of which there are two families, the Leporidae (hares and rabbits), and the Ochotonidae (pikas). The name of the order is derived from the Greek lagos (λαγος, "hare") and morphē (μορφή, "form").

Though these mammals can resemble rodents (order Rodentia), and were classified as a superfamily in that order until the early twentieth century, they have since been considered a separate order. For a time it was common to consider the lagomorphs only distant relatives of the rodents, to whom they merely bore a superficial resemblance.

The earliest fossil lagomorphs, such as Eurymylus, come from eastern Asia, and date to the late Paleocene or early Eocene.[2] The leporids first appear in the late Eocene, and rapidly spread throughout the northern hemisphere; they show a trend towards increasingly long hind limbs as the modern leaping gait developed. The pikas appear somewhat later, in the Oligocene of eastern Asia.[3]

Contents

Characteristics

Lagomorphs differ from rodents in that:

  • they have four incisors in the upper jaw (not two, as in the Rodentia);
  • they are almost wholly herbivorous (unlike rodents, many of which will eat both meat and vegetation; the few recorded exceptions within the Lagomorpha occur among members of both Lepus and Ochotona, and involve the occasional foraging for carrion as a supplementary winter food source);[4][5][6]
  • the male's scrotum is in front of the penis (unlike rodents', which is behind); and
  • the penis contains no bone (baculum), unlike in rodents.

However, they resemble rodents in that their teeth grow throughout their life, thus necessitating constant chewing to keep them from growing too long.

Classification

See also

References

  1. ^ a b Hoffmann, Robert S.; Andrew T. Smith (2005-11-16). Wilson, D. E., and Reeder, D. M. (eds). ed. Mammal Species of the World (3rd edition ed.). Johns Hopkins University Press. pp. 185-211. ISBN 0-801-88221-4. http://www.bucknell.edu/msw3. 
  2. ^ Palmer, D., ed (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. pp. 285. ISBN 1-84028-152-9. 
  3. ^ Savage, RJG, & Long, MR (1986). Mammal Evolution: an illustrated guide. New York: Facts on File. pp. 128–129. ISBN 0-8160-1194-X. 
  4. ^ "Snowshoe Hare". eNature: FieldGuides. eNature.com. 2007. http://www.enature.com/fieldguides/detail.asp?curFamilyID=556&curGroupID=5&lgfromWhere=&curPageNum=2. Retrieved 2008-03-23. 
  5. ^ Best TL, Henry TH (1994-06-02). "Lepus arcticus". Mammalian Species 457: 1–9. doi:10.2307/3504088. ISSN 00763519. OCLC 46381503. 
  6. ^ "Column 105: Pikas are not picky eaters". yourYukon (Environment Canada: Pacific and Yukon Region). 1998. http://www.taiga.net/yourYukon/col105.html. Retrieved 2008-03-23. 

Wiktionary

Up to date as of January 15, 2010

Definition from Wiktionary, a free dictionary

Wikispecies-logo.svg
Wikispecies has information on:

Wikispecies

Contents

Translingual

Etymology

From Greek Λαγομορφα, hare-shaped, which combines λαγός, hare, + μορφή, form.

Proper noun

Wikipedia-logo.png
Wikipedia has an article on:

Wikipedia

Lagomorpha

  1. A taxonomic order, within superorder Euarchontoglires - the hares, rabbits and pikas.

See also


Wikispecies

Up to date as of January 23, 2010

From Wikispecies

Taxonavigation

Main Page
Cladus: Eukaryota
Supergroup: Unikonta
Cladus: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Classis: Mammalia
Subclassis: Theria
Infraclassis: Placentalia
Ordo: Lagomorpha
Familia: Leporidae - Ochotonidae - †Prolagidae

Name

Lagomorpha Brandt, 1855

Vernacular names

Български: Зайцеподобни
English: Rabbits, hares and pikas
Español: Lagomorfos
Magyar: Nyúlalakúak
日本語: ウサギ目
‪Norsk (bokmål)‬: Haredyr
Polski: Zajęczaki
Português: Lagomorfos
Русский: Зайцеобразные
Svenska: Hardjur
Türkçe: Tavşanımsılar
Українська: Зайцеподібні
Wikimedia Commons For more multimedia, look at Lagomorpha on Wikimedia Commons.

Simple English

Lagomorphs[1]
Fossil range: Earliest Eocene - Recent
File:Ochotona
Pika, Ochotona princeps, in Sequoia National Park
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Eutheria
Superorder: Euarchontoglires
Order: Lagomorpha
Brandt, 1855
Families

Leporidae
Ochotonidae
Prolagidae (extinct)

[[File:|thumb|200px|European Hare (Lepus europaeus).]]

Lagomorpha is a mammal order. It includes pikas, rabbits and hares. Although the lagomorphs look like rodents, they are actually not because they have four incisors on the upper jaw, not two like in rodents, and they eat plants, not meat too, like rodents. They were classified under rodents until the 20th century. They are divided into two families, Leporidae, hares and rabbits, and Ochotonidae, the pikas.

Taxonomy

  • Order Lagomorpha
    • Family Ochotonidae (Pikas)
      • Genus Ochotona
    • Family Leporidae (rabbits and hares)
      • Genus Brachylagus
      • Genus Bunolagus
      • Genus Caprolagus
      • Genus Lepus
      • Genus Nesolagus
      • Genus Oryctolagus (includes the domestic rabbit)
      • Genus Pentalagus
      • Genus Poelagus
      • Genus Pronolagus
      • Genus Romerolagus
      • Genus Sylvilagus

References

  1. Hoffmann, Robert S.; Andrew T. Smith (2005-11-16). Wilson, D. E., and Reeder, D. M. (eds). ed. Mammal Species of the World (3rd edition ed.). Johns Hopkins University Press. pp. 185-211. ISBN 0-801-88221-4. http://www.bucknell.edu/msw3. 
Error creating thumbnail: sh: convert: command not found
Look up Lagomorpha in Wikispecies, a directory of species








Got something to say? Make a comment.
Your name
Your email address
Message