Family Myoxidae
This family regroups all Dormice species, it is sometimes known as Gliridae.
Family Castoridae
This family regroups all Beaver species.
Castor canadensis – North American beaver
Family Petromuridae
This monotypic family has been created for the Dassie rat.
Family Ctenodactylidae
This family regroups all Gundi species.
Family Heteromyidae
This family regroups all Pocket-mice species.
Dipodomys ordii – Ord’s kangaroo-rat
Family Pedetidae
This family regroups all Springhares.