Column I | Column II | Column III | |
(1) | Petromyzon | Ectoparasite | Cyclostomata |
(2) | Ichthyophis | Terrestrial | Reptilia |
(3) | Limulus | Body covered by chitinous exoskeleton | Pisces |
(4) | Adamsia | Radially symmetrical | Porifera |
List I | List II | ||
---|---|---|---|
A | Mesozoic Era | I | Lower invertebrates |
B | Proterozoic Era | II | Fish & Amphibia |
C | Cenozoic Era | III | Birds & Reptiles |
D | Paleozoic Era | IV | Mammals |