California Biota Home Page....Animalia....Chordata
Subphylum
| Superclass Agnatha (jawless vertebrates) | |
| Superclass Gnathostoma (jawed vertebrates) | |
Class Chondrichthyes (cartilaginous fishes, including sharks, skates, rays, etc.) |
|
| Class Osteichthyes (bony fishes) | |
| Class Amphibia (amphibians) | |
| Class Reptilia (reptiles) | |
| Class Aves (birds) | |
| Class Mammalia (mammals) | |