Ctenophora (comb jellies)
DEUTEROSTOMIA (deuterostomes)
---Echinodermata
(starfish, sea urchins, sea cucumbers, etc.)
---Hemichordata
(acorn worms, graptolites)
---Chordata
ECDYSOZOA (molting animals)
---Arthropoda
(crabs, spiders, insects, etc.)
LOPHOTROCHOZOA
(worms, molluscs, & lophophorates)
---Annelida
(segmented worms)
---Brachiopoda
(lamp shells)
---Bryozoa
("moss animals")
---Echiura
(spoon worms)
---Entoprocta
---Mollusca
(snails, clams, squid, etc.)
---Nemertini
(ribbon worms)
---Phoronida
(horseshoe worms)
---Pogonophora
(bearded tube worms)
---Sipuncula
(peanut worms)
Placozoa (the most simple animals known)
Platyhelminthes (flatworms)
Porifera (sponges)
Rotifera (rotifers) & Acanthocephala
Vendian Animals (the First animals)