Castorimorpha is the suborder of

rodent Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are n ...

s containing the

beaver Beavers are large, semiaquatic rodents in the genus ''Castor'' native to the temperate Northern Hemisphere. There are two extant species: the North American beaver (''Castor canadensis'') and the Eurasian beaver (''C. fiber''). Beavers a ...

s and the kangaroo rats. A 2017 study using retroposon markers indicated that they are most closely related to the

Anomaluromorpha Anomaluromorpha is a clade that unites the anomalures, springhares, and zenkerella. It has alternately been designated as either a suborder or infraorder. Most recently, recognized it as one of five suborders of rodents. Characteristics T ...

(the scaly-tailed squirrels and the springhare) and Myomorpha (mouse-like rodents).

Taxonomy

*Suborder Castorimorpha **Superfamily Castoroidea ***Family † Eutypomyidae ***Family Castoridae - beavers ***Family †

Rhizospalacidae ''Rhizospalax'' is a genus of extinct rodent from Europe thought to be distantly related to modern beaver Beavers are large, semiaquatic rodents in the genus ''Castor'' native to the temperate Northern Hemisphere. There are two extant ...

**Infraorder Geomorpha ***Superfamily † Eomyoidea ****Family † Eomyidae ***Superfamily Geomyoidea ****Family † Heliscomyidae ****Family †

Florentiamyidae Florentiamyidae is a family of extinct rodents from North America. They are part of the Superfamily Geomyoidea according to R. L. Carroll 1988. They are known to have existed 33.3 to 15.97 mya. They are known from the Miocene of United States ...

****Family † Entoptychidae ****Family Geomyidae - pocket gophers ****Family Heteromyidae - kangaroo rats and mice ** Diplolophidae ***Genus †'' Floresomys'' ***Genus †'' Texomys'' ***Genus †'' Jimomys'' ***Genus †'' Diplolophus'' ***Genus †'' Schizodontomys'' ***Genus †'' Griphomys'' ***Genus †'' Meliakrouniomys'' † indicates extinct taxa.

References

Citations

Bibliography

*Carleton, M. D. and G. G. Musser. 2005. Order Rodentia. Pp 745–752 in Mammal Species of the World A Taxonomic and Geographic Reference. Johns Hopkins University Press, Baltimore. *McKenna, Malcolm C., and Bell, Susan K. 1997. ''Classification of Mammals Above the Species Level.'' Columbia University Press, New York, 631 pp. Rodent taxonomy Mammal suborders Extant Eocene first appearances Taxa named by Albert Elmer Wood {{rodent-stub