family of mammals

Muridae is the largest family of mammals. It contains over 700 species. These species can be found naturally throughout Eurasia, Africa, and Australia. They have been introduced worldwide. The group includes true mice and rats, gerbils, and relatives.

Temporal range:
early Miocene – Recent
Rattus norvegicus -Fairlands Valley Park, Stevenage, England-8.jpg
Black rat (Rattus rattus)
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Superfamily: Muroidea
Family: Muridae


The family name Muridae is sometimes used in a broader sense to include all members of the superfamily Muroidea.

The Murids are classified in four subfamilies, and about 140 genera.



  • Jansa S.A. and M. Weksler. 2004. Phylogeny of muroid rodents: relationships within and among major lineages as determined by IRBP gene sequences. Molecular Phylogenetics and Evolution, 31:256-276.
  • Michaux J. A. Reyes, and F. Catzeflis. 2001. Evolutionary history of the most speciose mammals: molecular phylogeny of muroid rodents. Molecular Biology and Evolution, 17:280-293.
  • Steppan S.J; R.A. Adkins and J. Anderson. 2004. Phylogeny and divergence date estimates of rapid radiations in muroid rodents based on multiple nuclear genes. Systematic Biology, 53:533-553.
  • Muridae on ITIS