Among the phyla (clades) of the animal kingdom are:
Porifera | SpongesCoelenterata /Cnidaria
(Jellyfish)Annelida | Jointed Worms
(Earth worms, Lugworms, Leechs)Nematoda | Roundworms
A click on one of the last three phyla takes you to a page with further explanations.
A click on the four first ones takes you directly into the taxonomic search.
This list is not complete but only shows those phyla that are relevant for homeopathic use.