Key to the Rodentia
		Greatest length of skull more than 28 mm; body usually robust and 30 g or more						Greatest length of skull less than 28 mm; body smaller and usually less than 30 g
Artiodactyla  -  Carnivora  -  Chiroptera  -  Didelphimorphia  -  Insectivora  -  Lagomorpha  -  Rodentia  -  Xenarthra Scientific Names - Common Names