Glires Fossil range: Early Paleocene - Recent PreЄ Є O S D C P T J K Pg N
Kangaroo rat (Dipodomys)
Scientific classification
Kingdom:	Animalia
Class:	Mammalia
Infraclass:	Eutheria
Superorder:	Euarchontoglires
(unranked):	Glires
Orders
Rodentia Lagomorpha

Glires (Latin glīrēs, dormice) is a clade consisting of rodents and lagomorphs (rabbits, hares, and pikas). This hypothesis that these form a monophyletic group has been long debated based on morphological evidence, although recent morphological studies strongly support monophyly of Glires (Meng and Wyss, 2001; Meng et al., 2003). In particular, the discovery of new fossil material of basal members of Glires, particularly the genera Mimotona, Gomphos, Heomys, Matutinia, Rhombomylus, and Sinomylus, has helped to bridge the gap between more typical rodents and lagomorphs (Meng et al., 2003; Asher et al., 2005). Data based on nuclear DNA support Glires as a sister of Euarchonta to form Euarchontoglires (Murphy et al. and Madsen et al. 2001), but some genetic data from both nuclear and mitochondrial DNA have been less supportive (Arnason et al. 2002). A study investigating retrotransposon presence/absence data unambiguously supports the Glires hypothesis (Kriegs et al. 2007).

[edit] References

• Asher RJ, Meng J, Wible JR, et al. (February 2005). "Stem Lagomorpha and the antiquity of Glires". Science 307 (5712): 1091–4. doi:10.1126/science.1107808. PMID 15718468. http://www.sciencemag.org/cgi/pmidlookup?view=long&pmid=15718468. 

• Madsen O, Scally M, Douady CJ, et al. (February 2001). "Parallel adaptive radiations in two major clades of placental mammals". Nature 409 (6820): 610–4. doi:10.1038/3505454410.1038/35054544 (inactive 2009-12-14). PMID 11214318. 

• Meng J, Hu Y, Li C (2003). "The osteology of Rhombomylus (Mammalia, Glires): implications for phylogeny and evolution of Glires". Bull. Am. Mus. Nat. Hist. 275: 1–247. doi:10.1206/0003-0090(2003)275<0001:TOORMG>2.0.CO;2. http://hdl.handle.net/2246/442. 

• Meng J, Wyss AR (2001). "The morphology of Tribosphenomys (Rodentiaformes, Mammalia): phylogenetic implications for basal Glires". J. Mammal. Evol. 8 (1): 1–71. doi:10.1023/A:1011328616715. 

• Murphy WJ, Eizirik E, Johnson WE, Zhang YP, Ryder OA, O'Brien SJ (February 2001). "Molecular phylogenetics and the origins of placental mammals". Nature 409 (6820): 614–8. doi:10.1038/3505455010.1038/35054550 (inactive 2009-12-14). PMID 11214319. 

• Arnason U, Adegoke JA, Bodin K, et al. (June 2002). "Mammalian mitogenomic relationships and the root of the eutherian tree". Proc. Natl. Acad. Sci. U.S.A. 99 (12): 8151–6. doi:10.1073/pnas.102164299. PMID 12034869. PMC 123036. http://www.pnas.org/cgi/content/full/99/12/8151. 

• Kriegs JO, Churakov G, Jurka J, Brosius J, Schmitz J (April 2007). "Evolutionary history of 7SL RNA-derived SINEs in Supraprimates". Trends Genet. 23 (4): 158–61. doi:10.1016/j.tig.2007.02.002. PMID 17307271. http://linkinghub.elsevier.com/retrieve/pii/S0168-9525(07)00037-6.  as PDF