The Muroidea are a large superfamily of rodents, including mice, rats, voles, hamsters, lemmings, gerbils, and many other relatives. Although the Muroidea originated in Eurasia,[1] they occupy a vast variety of habitats on every continent except Antarctica. Some authorities have placed all members of this group into a single family, Muridae, due to difficulties in determining how the subfamilies are related to one another. Many of the families within the Muroidea superfamily have more variations between the families than between the different clades.[2] A possible explanation for the variations in rodents is because of the location of these rodents; these changes could have been due to radiation[3] or the overall environment they migrated to or originated[4] in. The following taxonomy is based on recent well-supported molecular phylogenies.[5]
Muroidea Temporal range:
| |
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Common vole (Microtus arvalis) | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Rodentia |
Suborder: | Myomorpha |
Superfamily: | Muroidea Illiger, 1811 |
Families | |
Platacanthomyidae sister: Dipodoidea |
The muroids are classified in six families, 19 subfamilies, around 280 genera, and at least 1,750 species.
5 main clades are recognized by Jansa & Weksler (2004).[6]
Together, Muroidea and its sister group Dipodoidea form the suborder Myomorpha.
The following phylogeny of more than 70 Muroidea genera, based on molecular phylogenetic analysis of the Interphotoreceptor Retinoid Binding Protein (IRBP) gene, is from Jansa & Weksler (2004: 264).[6] Although Platacanthomyidae was not analyzed by Jansa & Weksler (2004), a study by Fabre et al. 2012[7] suggests that it is the most basal lineage of Muroidea.