THE TEMPORAL ARCHES OF THE REPTILIA. 



1/7 



1 . Afastoitonsaurus, 



2. Lystrosaurus, 



3. Chelone, 



4. Procolophon, 



5. Dimetrodon, 



6. Sphenodon, 



7. Platecarpus, 



8. Python, 



9. Anchisattms, 

 10. Gavialis. 



