Neotoma

1. cheek teeth with crowns bearing prismatic patterns of dentine
2. M¹ and M² with middle loop undivided, extending completely across tooth
Click here to see an example of a tooth with the middle loop divided (Ondatra).
3. supraorbital and temporal ridge present
4. infraorbital foramen notched on dorsal border
5. cranium not constricted abruptly in interorbital region