1.Supraoccipital 2. Opistotic
3. Quadrate 4. Prootic 5. Postorbital
6. Squamosal 7. Parietal 8.
Postorbital 9.Frontal 10. Prefrontal
7 &
9 are part of the Medial Series
1. Quadrate 2. Basioccipital
3. Supraoccipital 4. Basisphenoid 5. Quadratojugal
6. Zygomatic (jugal) 7. Palatine
8. Vomer 9. Premaxilla 10. Maxilla 11. Pterygoid
9 & 10 are marginal bones.
4, 7, 8, & 11 are bones
of the palate and under side of chondrocranium.
5 is a cheek bone.
2, 3, & 4 are bones
of the chondrocranium.
1. Postorbital 2. Prefrontal
3. Premaxilla 4. Maxilla 5. Zygomatic (jugal)
6. Quadratojugal 7. Quadrate
8. Squamosal 9. Supraoccipital 10. Parietal
1. Opistotic 2. Supraoccipital
3. Exocciptial 4. Parietal 5. Squamosal 6. Quadrate
7. Basiocciptial
The parietal (4) and
squamosal (5) are not bones of the chondrocranium, but they are easily
seen from this view.
Lower Jaw of Snapping Turtle
1. Dentary 2. Surangular 3. Articular 4. Angular
The dentary, angular, and surangular are dermal bones. The
Articular is endochondral bone.