Here is a list of important phylum:
| Phylum | Characters | Examples |
| Protozoa | Single celled animals | Unicellular Animals like Amoeba, Paramoecium, Monogystis and Malaria parasite |
| Porifera | Pore bearers | sponges |
| Cnidaria | Hydra, Jelly-Fishes, Sea-Anemones and Corals | |
| Coelenterata | Common body cavity and digestive cavity | |
| Platyhelminthes | Flatworms | flatworms, tapeworms, flukes |
| Nematoda | Thread-like worms | roundworms |
| Annelida | Metamerically segmented animal | earthworms, leeches, marine worms |
| Arthropoda | Having jointed legs | insects, crustaceans, Prawns, Crabs, Cockroaches, Centipedes, Millipedes, Scorpions, and Spiders. |
| Mollusca | Soft bodied | snails, clams, squids, Cuttle-fishes and Octopus |
| Echinodermata | Spiny skinned | sea stars, sea urchins, sand dollars, sea cucumbers |
| Chordata | Having notochord | Balanoglossus, Ascidians, Amphioxus and Vertebrates. |