Concise hierarchy
	(Kingdom) Animalia - (Phylum) Chordata - (Class) Mammalia - (Order) Rodentia - (Family) Cricetidae
Original position
Original entries
Subsequent entries
	
		| Holochilus (Genus) Brandt, 1835 |  |  | 
	
		| Megalomys (Genus) Trouessart, 1881 |  |  | 
	
		| Melanomys (Genus) Thomas, 1902 |  |  | 
	
		| Microryzomys (Genus) Thomas, 1917 |  |  | 
	
		| Neacomys (Genus) Thomas, 1900 |  |  | 
	
		| Nectomys (Genus) Peters, 1861 |  |  | 
	
		| Nesoryzomys (Genus) Heller, 1904 |  |  | 
	
		| Oecomys (Genus) Thomas, 1906 |  |  | 
	
		| Oryzomys (Genus) Baird, 1857 |  |  | 
	
		| Scolomys (Genus) Anthony, 1924 |  |  | 
	
		| Sigmodontomys (Genus) Allen, 1897 |  |  | 
	
		| Zygodontomys (Genus) Allen, 1897 |  |  | 
Current position
	Historical positions
	
		Number of Subtaxa