1. Porifera

3. Cnidaria

5. Box Jellyfish

8. Platyhelminthes

9. Terrestrial Flatworm
Land Planarian
                                                                   
                                                                   
                                                                   

12. Nematoda

13. Mollusca

17. Annelida

19. Arthropoda
Cambrian (600mya) – Carboniferous (345mya)

31. Echinodermata

38. Chordata

39. Golden Toad of Costa Rica – EXTINCT since 1989