Key to the Rodentia
		Hind foot larger, more than 24 mm; cusps and lophs of upper and lower molar teeth alike						Hind foot smaller, 23 mm or less; cusps of upper and lower molar teeth different, uppers more complex
Artiodactyla  -  Carnivora  -  Chiroptera  -  Didelphimorphia  -  Insectivora  -  Lagomorpha  -  Rodentia  -  Xenarthra Scientific Names - Common Names