Order Rodentia

By: Jake Koetsier

Mammal Phylogeny

Rodent Anatomy

• Upper and lower incisors are curved into semi circles

• No canine teeth

What Evidence is there at Millennium?

• Teeth• Jaws• Femurs• Microfossils

Family Geomyidae

• Geomys pinetis• True Gophers• Burrowers

Family Heteromyidae

• Kangaroo Rats• Kangaroo Mice• Burrowers

Family Muridae/Arvicolinae

• Synaptomys australis• Neofiber alleni• Microtus pinetorum• Microtus pennsylvanicus• Proheteromys• Geomys pinetis• Voles, Muskrats, and Lemmings• Herbivores

Family Muridae/Sigmodontidae

• Sigmodon hispidus• Reithrodontmys• Peromyscus gossypinus• Oryzomys palustris• Rats and Mice

Family Sciuridae

• Sciurus• Squirrels• Chipmunks• Woodchucks• Prairie Dogs