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Glires (Latin glīrēs, dormice) is a clade (sometimes ranked as a grandorder) consisting of rodents and lagomorphs (rabbits, hares, and pikas). The hypothesis that these form a monophyletic group has been long debated based on morphological evidence. Two morphological studies, published in 2001[1] and 2003,[2] strongly support the monophyly of Glires. In particular, the 2003 study, reported the discovery of fossil material of basal members of Glires, particularly the genera Mimotona, Gomphos, Heomys, Matutinia, Rhombomylus, and Sinomylus. Their description, in 2005,[3] helped to bridge the gap between more typical rodents and lagomorphs.[2] Data published in 2001,[4][5] based on nuclear DNA, supported Glires as a sister of Euarchonta to form Euarchontoglires, but some genetic data from both nuclear and mitochondrial DNA have been less supportive.[6] A study, published in 2007,[7] investigating retrotransposon presence/absence data unambiguously supports the Glires hypothesis. Studies published in 2011[8] and 2015[9] place Scandentia as a sister clade of the Glires, invalidating Euarchonta as a clade.

Glires
Temporal range: Paleocene - Recent
Graphiurus spec -murinus-1.jpg
Dormouse (Gliridae)
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Clade: Exafroplacentalia
Magnorder: Boreoeutheria
Superorder: Euarchontoglires
(unranked): Glires
Linnaeus, 1758
Orders


Euarchontoglires

Scandentia (treeshrews)Die Säugthiere in Abbildungen nach der Natur, mit Beschreibungen (Plate 34) (white background).jpg

Glires

Rodentia (rodents)Ruskea rotta.png

Lagomorpha (rabbits, hares, pikas)Bruno Liljefors - Hare studies 1885 white background.jpg

Primatomorpha

Dermoptera (flying lemurs)Cynocephalus volans Brehm1883 (white background).jpg

Primates (†Plesiadapiformes, Strepsirrhini, Haplorrhini)Cynocephalus doguera - 1700-1880 - Print - Iconographia Zoologica - Special Collections University of Amsterdam - (white background).tiff

ReferencesEdit

  1. ^ Meng & Wyss 2001.
  2. ^ a b Meng 2003.
  3. ^ Asher 2005.
  4. ^ Murphy 2001.
  5. ^ Madsen 2001.
  6. ^ Arnason 2002.
  7. ^ Kriegs 2007.
  8. ^ Meredith, Robert W.; Janečka, Jan E.; Gatesy, John; Ryder, Oliver A.; Fisher, Colleen A.; Teeling, Emma C.; Goodbla, Alisha; Eizirik, Eduardo; Simão, Taiz L. L. (2011-10-28). "Impacts of the Cretaceous Terrestrial Revolution and KPg Extinction on Mammal Diversification". Science. 334 (6055): 521–524. doi:10.1126/science.1211028. ISSN 0036-8075. PMID 21940861.
  9. ^ Zhou, Xuming; Sun, Fengming; Xu, Shixia; Yang, Guang; Li, Ming (2015-03-01). "The position of tree shrews in the mammalian tree: Comparing multi-gene analyses with phylogenomic results leaves monophyly of Euarchonta doubtful". Integrative Zoology. 10 (2): 186–198. doi:10.1111/1749-4877.12116. ISSN 1749-4877. PMID 25311886.