The Muroidea are a large superfamily of rodents, including mice, rats, voles, hamsters, gerbils, and many other relatives. 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. The following taxonomy is based on recent well-supported molecular phylogenies.[1]
The muroids are classified in six families, 19 subfamilies, around 280 genera, and at least 1750 species.
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).[2] Although Platacanthomyidae was not analyzed by Jansa & Weksler (2004), a study by Fabre et al. 2012[3] suggests that it is the most basal lineage of Muroidea.