1. Porifera (sponges)
2. Cnidaria (jellyfish, corals, and sea anemones)
3. Platyhelminthes (flatworms)
4. Nematoda (roundworms)
5. Annelida (segmented worms)
6. Mollusca (clams, snails, and squids)
7. Arthropoda (insects, spiders, and crustaceans)
8. Echinodermata (starfish, sea urchins, and sea cucumbers)
9. Chordata (fish, amphibians, reptiles, birds, and mammals)
10. Hemichordata (acorn worms)