Didelphis virginiana

1. 50 teeth (DF = 5/4, 1/1, 3/3, 4/4)
Click here to see an annotated diagram of the dental formula of Didelphis virginiana.

2. molars are tuberculosectorial (bearing cusps arranged in asymetrical triangles)
3. angular process inflected inwardly
4. nasals are long and expanded on the forehead in diamond shape
5. palatine has several foramina
6. jugal extends backward far enough to help form mandibular fossa
7. prominent sagittal crest