The Classes of Phylum Crustacea
| Remipedia | remipedes |
| Malacostraca | include shrimps, prawns, lobsters, crabs |
| Cephalocarida | cephalocarids |
| Branchiopoda | branciopods |
| Mystacocarida | mystacocarids |
| Branchiura | fish lice |
| Copepoda | copepods |
| Tantulocarida | tantulocarids |
| Cirripedia | barnacles |
| Ostracoda | ostacods |