Muskrats & woodrats belong to this order of mammals
Considered to be a primitive marsupial order, 
Didelphimorphia is restricted to ...... Neotoma floridana (Eastern woodrat) .... 
common muskrat (Ondatra zibethicus) and the round-tailed muskrat (Neofiber 
alleni), and... [DOC] [TLE] Rodents and Reclamation in the Imperial Valley - JStor [PAR] Colorado Valley woodrat (Neotoma albigula venusta) was a character- istic 
dweller of mesquite ... ground, had the most restricted distribution of any of the 
mammals.